Integument vs. Testa — What's the Difference?

In biology, integument is the natural covering of an organism or an organ, such as its skin, husk, shell, or rind.It derives from integumentum, which is Latin for "a covering". In a transferred or figurative sense, it could mean a cloak or a disguise.

The protective, often hard outer coat of a seed.

A natural outer covering or coat, such as the skin of an animal or the membrane enclosing an organ.

(botany) A seed coat.

(Botany) The outermost layer or layers of an ovule.

(marine biology) The external calciferous shell, or endoskeleton, of an echinoderm; the test.

A shell or other outer protective layer.

Protective outer layer of seeds of flowering plants

(biology) An outer protective covering such as the feathers or skin of an animal, a rind or shell.

(botany) The outer layer of an ovule, which develops into the seed coat.

That which naturally invests or covers another thing, as the testa or the tegmen of a seed; specifically (Anat.), a covering which invests the body, as the skin, or a membrane that invests a particular part.

An outer protective covering such as the skin of an animal or a cuticle or seed coat or rind or shell