Peritreme

Pronunciation
/per-i-treem/
Category
Anatomy
Singular
Peritreme
Plural
Peritremes

Definition

The outer, usually hardened, border of a spiracle (breathing pore) in insects.

Etymology

From Greek 'peri-', meaning 'around', and 'trema', meaning 'hole' or 'aperture'.

Example

The peritreme of a dragonfly nymph helps to regulate water loss.

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