spiracle

Meaning

1. A pore or opening used (especially by arthropods and some fish) for respiration.
2. The blowhole of a whale, dolphin or other similar species.
3. Any small aperture or vent for air or other fluid.

Synonyms

blowhole

breather hole

vent

air hole

pinhole

pore

riser

venthole

void

whistler

air-hole

air valve

air vent

vent hole

stegma

stoma

blow hole

female sterility

air gate

gas vent

gas porosity

gas cavity

gas lock

gas hole

pick-up hole

chip pocket

door of vital energy

metrorrhagia and metrostaxis

airflow orifice

ventilating pit

ventilation hole

dysuria

fumarole

hole

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Pronounced as (IPA)

/ˈspɪɹəkəl/

Etymology

From Latin spiraculum, from spirare (“to breathe”).