spiracle

IPA: spˈɪrʌkʌɫ

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

Examples of "spiracle" in Sentences

(In the spiracle is a miniature demibranch, the pseudo-branch.
No, he breathes through his spiracle alone; and this is on the top of his head.
At the end, which I was not long in reaching, a breath of wind suggested that what Gunnie had called a spiracle stretched from the roof to this place.
At this stage the gills are still external, being apparent as red filaments, and, as usual, branchial filaments are also protruded through the spiracle.
A very large dome, built with great care in the centre or pole, contains another small vault as it were rising out of it, and in this is a spiracle, which is right over the altar.
However, insect body size increases in three-dimensions (length, breadth, and height); hence, body size increases more quickly than spiracle area as insects get larger and larger.
A very large dome, built with great care in the cen - tre or pole, contains another small vault as it were rising out of it, and in this is a spiracle, which is right over the altar.
In a corner of the Kings Palace, it being seated on a rising hill, a cave had long beene made in the body of the same hill, which received no light into it, but by a small spiracle or vent-loope, made out ingeniously on the hils side.