chaeta
Concise Oxford English Dictionary © 2008 Oxford University Press:
chaeta /ˈkiːtə/
▶noun (pl. chaetae /-tiː/) Zoology a stiff bristle made of chitin, especially in an annelid worm.
– origin C19: mod. L., from Gk khaitē ‘long hair’.
'chaeta' also found in these Oxford entries:

