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spi·ra·cle
 spiracle
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- pronunciation:
- spi
r
kl
[or]
spaI
r
kl
- features:
- Word Parts
| part of speech: |
noun |
| definition 1: |
an opening or hole that allows for the passage of air for breathing or ventilation; air hole.
- similar words:
- outlet, vent
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| definition 2: |
in zoology, an aperture for breathing, such as a whale's blowhole, the opening behind the eye of sharks, rays, and skates, or the tracheal openings on the sides of the bodies of certain insects and spiders.
- similar words:
- vent
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| definition 3: |
a small vent on the surface of a lava flow, formed by gases.
- similar words:
- vent
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| related words: |
aperture, orifice |
| derivation: |
spiracular (adj.) |
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