One entry found for
nostril.
Main Entry:
nos·tril 
Pronunciation:
näs-tr
l
Function:
noun
Etymology: Old English
nosthyrl "nostril," literally "nose hole," from
nosu "nose" and
thyrel "hole" --related to
THRILL --see
Word History at
THRILL
: either of the outer openings of the nose through which one breathes;
also : either fleshy wall forming a side of the nose