Nictitating membrane

Nictitating membrane

A transparent inner eyelid in birds, reptiles, and some mammals that closes to protect and moisten the eye. Also called third eyelid.

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Part of Speech: noun
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Industry/Domain: Animals
Category: Dogs
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Related terms

nictitating membrane

Natural environment; Coral reefs

A semi-transparent membrane which can be drawn across the eye in birds, reptiles and many mammals. It functions to either moderate the effects of strong light or to sweep away ...

nictitating membrane

Animals; Cats

A transparent inner eyelid in birds, reptiles, and some mammals that closes to protect and moisten the eye. Also called third eyelid.

nictitating membrane

Animals; Dogs

A transparent inner eyelid in birds, reptiles, and some mammals that closes to protect and moisten the eye. Also called third eyelid.

nictitating membrane

Animals; Birds

The nictitating membrane is the vertical semi-transparent fold under the eyelid. This is also the third eyelid of the bird and can be closed for protection. It has its own ...

nictitating membrane

Medical; Health care; Medicine

A fold of the mucous membrane of the conjunctiva in many animals. At rest, it is hidden in the medial canthus. It can extend to cover part or all of the cornea to help clean the ...

nictitating membrane

Science; General science

A clear membrane forming a third eyelid in amphibians, reptiles, birds, and some mammals (but not humans). It can be drawn across the cornea independently of the other eyelids, ...

dead ring

Animals; Dogs

The stationary ring on a training collar that pulls on the collar, not the dog’s neck.

hot spot

Animals; Dogs

A localized area of skin infection. It’s usually round, red, and warm to the touch.

registration certificate

Animals; Dogs

The paper certifying a dog’s registration with an accredited organization.

release word

Animals; Dogs

A word that lets a dog know that she is free to move.

American Kennel Club (AKC)

Animals; Dogs

An official registry for purebred dogs in the United States, which keeps a registry of all litter and individual registrations.

clicker

Animals; Dogs

A small hand-held device that makes a sharp cracking sound when pressed. Paired with a food reward, an effective dog-training tool.

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