e. coli
The abbreviated term for a certain bacteria, called Escherichia coli
ear covert
The small feathers that cover the ear of birds
ear implant
A pellet that contains medication or growth regulator that is placed underneath an animal’s skin or in its ear
ear marking
The removal of part of the ear of certain livestock animals in a particular pattern; this is how ownership is designated
ear notcher
A type of punch used to identify animals by marking their ears
ear notching
The act of cutting a pattern into an animal’s ear for identification purposes
ear tag
A type of tag that is fastened to an animal’s ear for identification purposes
ear tagging
The placement of an ID tag on an animal’s ear
eared
The term used to refer to an animal that has been held back by its ears
early speed
A horse with the ability to gain maximum speed with just a few strides
easy keeper
An animal that does not need much food or care to survive
ecchymosis
A patch of bleeding beneath the skin; a bruise
ecdysis
Molting or shedding
echocardiography
A procedure that is used to evaluate the health and structures of the heart
eclosion
The act of hatching out of an egg
ecraseur
An instrument that is used to sever a diseased part by tightening a chain around it and tightening it
ectoderm
The outermost of the three layers of an embryo; this eventually turns into the hair, skin, and nerves
ectopic pregnancy
An ovum that is fertilized outside of the uterus
ectothermic
The act of pulling heat from outside of the body, like lizards and snakes do
ectropion
The turning out of the eyelid
eczema
A disease of the skin that is characterized by the development of small papules, itching, and sometimes alopecia; itching and crust formation may be involved.
edema
The collection of fluid in the tissue
efferent
To carry something away
effete
The eventual inability of an animal to give birth to young
efficacy
The extent to which a drug is effective
effluent
Discharge
effusion
The escape of fluid or blood into tissues or body spaces or cavities
egestion
Waste material that is excreted from the digestive system
egg
The body of reproduction that is produced by the ovum
egg cell
The female sex cell or germ cell
egg tooth
The structure found on the upper part of the embryo chick’s beak; this is used for breaking the shell at the time of hatching
ejaculate
The excretion of semen from the reproductive system of the male
elastin
A type of protein that is found in cartilage and other types of tissue
elastration
A type of castration in which rubber bands are used to cut off the spermatic cord and cause it to waste away.
elastrator
The device that is used in bloodless castration; small bands
elatus
Another word for tail
electric prod
A device that is powered by batteries and used to shock animals slightly in order to aid in driving them
electrical stimulation
A way of collecting semen by sending an electric current into a male animal’s rectum
electro ejaculation
A way of collecting semen for insemination in which electrical currents are applied to cause ejaculation
electro ejaculator
A probe with a power source that is used to promote ejaculation without copulation
electrocardiogram
A record of the activity of the myocardium
electrocardiograph
A tool that is used to create a record of the electrical activity in the myocardium
electroencephalogram
Any record of the electrical activity that takes place in the brain
electroencephalograph
A type of instrument used to make a record of the brain’s electrical activity
electrolute
Any substance that breaks into ions when placed into a solution
electromyogram
A record of the strength of contractions of the muscles that are caused by electrical stimulation
elevation
The lifting of something
emaciation
Wasting away or being excessively weak or thin
emasculate
The castration of an animal
emasculatome
A type of tool that is used to sever the spermatic cord without breaking the skin
emasculator
A tool that is used to castrate an animal by crushing the spermatic cord
embolism
The blockage of a vessel by an object, like air or fat
embolus
The collection of something in a blood vessel
embryo
The zygote that is developed after conception
embryo sac
The sac the holds the embryo after conception
embryo transfer
The transfer of an embryo from one female to another for any purpose
embryology
The science of dealing with embryo
embryonic
Something having to do with an embryo or the development of an embryo
embryonic vesicle
The embryo sac; the sac that holds the embryo as it develops
embryotomy
The cutting of the fetus to allow it to be removed from the uterus
emesis
The act of vomiting
emetic
Any substance that creates the urge to vomit
emission
Discharge
emphysema
A disease of the lungs that is created by the enlargement or change in the alveola and alveolar walls
emulsification
The breaking down of large globs of fat into smaller parts
emulsify
To suspend one liquid into another without it mixing
enamel
The white substance over the crown of teeth
encapsulation
To enclose something in a type of sheath or capsule
encephalomalacia
The softening of the brain, a medical condition
encephalomyelitis
A medical condition in which the brain and spine are inflamed
encephalopathy
A disease of the brain of any type
enclosure
Any type of pen or enclosure for the confinement of animals
encrustation
Any crusting or coating on the body
encyst
To become enclosed in a type of bladder or cyst
endectocide
Any type of agent that is used to kill parasites
endemic
The presence of a disease within a given area
endocarditis
An inflammation of the lining of the heart
endocardium
The inside layer of the heart
endocrine
Having to do with the internal system
endocrinologist
A person who specializes in the study of the hormone system
endocrinology
The study of the hormone system
endocrinopathy
A disease involving the part of the system that produces hormones
endoctracheal intubation
The administration of a tube passed through the mouth, pharynx, larynx, and trachea
endoderm
The innermost layer of an embryo
endogenous
Something that has its origin inside the body
endolymph
A type of fluid that fills the cochlear canal
endometrium
The innermost layer of the uterus
endoparasite
Any of many parasites that live inside the host’s body
endorphin
A brain that is produced by the brain, it raises the threshold of pain
endoscope
A type of instrument that is used to look inside the body
endoscopy
Any examination of the inside of the body that is made using an endoscope
endosteum
The term for the lining of the medullary cavity, a type of tissue
endothelium
The covering of cells that is the lining of the organs and blood vessels
endotoxin
A type of toxin that is produced within a living thing and is released upon destruction of that living thing, usually along with its disintegration or decomposition
enema
Introducing fluid into the rectum of a living thing
ensilage
Any type of crop that is preserved in a silo for use as feed for animals; also called silage
ensile
To put plant material in a silo to bring it to fermentation for use as silage
enteric
The intestines
enteritis
A medical condition in which the small intestines are inflamed
enterocolitis
Inflammation of the large and small intestine
enterostomy
The creation of an opening into the small intestine through surgical means
entozoon
Internal parasites
entrails
The organs of an animal’s body, usually the intestines
entropion
Turning in of the eyelids
enucleation
The removal of a whole organ; usually the eye ball
enzymatic
Having to do with an enzyme or process involving an enzyme
enzyme
A substance that causes chemical change to another
epaxial
The area along the dorsal vertebral column
ependyma
The lining of the brain and spinal cord central canal
epicardium
The word for the outside layer of the heart
epidemic
The outbreak of a disease inside of a group
epidemiology
The study of the way that diseases spread within a group
epidermis
The outside layer of the skin
epidural
Something that is found above the dura mater
epidural anesthesia
The loss of sensation due to the injection of a substance into the space above the dura mater
epidural hematoma
A collection of blood or fluid above the dura mater
epiglottis
The covering over the larynx, much like a lid
epilepsy
A condition of frequent or recurring seizures that are not of a system origin
epinephrine
A type of hormone, also called adrenaline
epiphora
The excessive production of tears
episiotomy
An incision that is made into the perineum and vagina to help deliver the fetus without further damage to the body structure
epispadias
A condition in which the urethra opens on the penal dorsum
epistaxis
A bloody nose
epithalamus
The part of the diencephalon that houses the olfactory organs and pineal gland
epithelialization
A manner of healing by growing an epithelium over a surface
epithelium
A covering of cells that turns into the outermost layer of skin and covers the body
epulis
A type of tumor that comes from the mucous membranes in the gums
equilibrium
A state of balance or being balanced
equine
The name for the species of horses, donkeys, mules
erection
The standing upright of a body part due to engorgement of blood
erection
The term used for hair that is standing straight up
erosion
Loss of epithelium to the basement membrane
erthrocytosis
An increase in red blood cells to abnormal levels
eructation
Burping or bringing up gas from the stomach
erythema
Redness of the skin
erythrocyte
A red blood cell that carries oxygen
escherichia coli
A type of species of bacteria, often referred to as E Coli
esophageal reflux
The process of returning the stomach contents to the esophagus
esophagus
The tube that extends from the mouth to the stomach
essential host
A host that is needed for a certain stage in the development of a parasite
estivate
A state in which the animal is able to reduce the temperature of its body, heart rate, breathing rate, and metabolism usually in the summer
estray
An animal that is wandering and belongs to someone unknown
estriol
A type of substance that is obtained from the urine of a pregnant animal
estrogen
The type of female hormone produced in the ovaries that contributes to sex drive and female characteristics
estrous cycle
The reproductive cycle of female animals
estrus
The time period in which a female is receptive to male attention
ethology
The science of the way that animals behave in relation to their environment
etiological
Having to do with what causes disease
etiology
The study of the various causes of disease
eupeptic
Pertaining to normal digestion
euthanasia
Inducing death on an animal or putting them to sleep
evaginated
Turned from the inside out
eversion
Turning from the outside in
everted
Turned inside out
eviscerate
To remove the internal organs
ewe
A female sheep that is intact
excise
To remove by surgical methods
excretion
Eliminating or the material that has actually been eliminated
exfoliative
Pertaining to material that is falling off
exhalation
Expiration; breathing out
exosmosis
The diffusion of fluid through a membrane into a type of fluid that is less dense
exotoxin
A type of toxin created by bacteria and absorbed into the host’s tissue
exotropia
Eyes that are deviated outwards
eyeing
The act of cutting wool away from sheep’s eyes
eyetooth
One of the two canine teeth; also called dog teeth
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