Sealife guideThe sea life glossaryOur glossaries

Last updated on 05/07/2026 at 10:15 PM

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Description

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ectoderm

Définition

The outermost layer of cells in an embryo, which gives rise to the skin, nervous system and sense organs.

Anglais

ectoderme

Français

egg, egg cell

Définition

Female reproductive cell produced by the ovaries, capable of being fertilized by a sperm cell to form a new organism.

Anglais

ovule

Français

endoderm

Définition

The innermost layer of cells in an embryo, which gives rise to the digestive tract and associated organs.

Anglais

endoderme

Français

endofauna

Définition

Animals that live within the substrate of the seabed, soil or sediment.

Anglais

endofaune

Français

endoskeleton

Définition

An internal skeleton that supports and protects the body of an animal.

Anglais

endosquelette

Français

epifauna

Définition

Animals that live on the surface of the seabed or other substrates.

Anglais

épifaune

Français

epiphyte

Définition

A plant that grows on another plant for physical support but does not take nutrients from it.

Anglais

épiphyte

Français

euryhalin

Définition

Able to tolerate a wide range of salinities in the surrounding water.

Anglais

euryhalin

Français

exoskeleton

Définition

A hard, external skeleton that supports and protects the body of some invertebrates.

Anglais

exosquelette

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