Insects are Chitinous

Metathorax 

--n. the rear segment of the thorax of an insect.

Metaplasm

--n. lifeless material derived from protoplasm.

Metabolism

--n. the sum total of the chemical processes of living organisms, which result in growth, the production of energy and the maintenance of the vital functions, and in which the waste products of these processes are rendered harmless.

Metaphor

-- n. a figure of speech in which a name or quality is attributed to something to which it is not literally applicable.

Metamorphic

--adj. causing or resulting from metamorphosis 

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