0 either of the two openings in the nose through which air moves when you breathe:
1 either of the two openings in the nose through which air moves
The external surface including the fins, nostrils, beneath the operculum and under the scales was examined for ectoparasites.
In the midfetal period the already formed special sense organs of hands, eyes, nostrils, and mouth are sealed by fusion and thickening of the integument.
The alar base of the nostril also needs careful positioning.
Because of maxillary hypoplasia the nose is short and upturning, with anteverted nostrils.
On the dermal skull roof, a small septomaxilla lies posterior to the right external nostril.
In effect, dangerous or otherwise risky activities should be met by breathing through different nostrils or towards different parts of the body.
Suddenly a goat's head appears, growing to huge proportions; the room fills with red light, mephitic vapours exude from the goat's nostrils.
He snorted his nostrils clear, *but his nostrils were still not clear.