moustache; beard; whiskers (on a cat, etc.); feelers (on an insect, etc.); shadow (on a candlestick chart)
whiskers; sideburns; sideboards
use of blue eyebrow pencil to indicate a character has shaved his cheeks (in kabuki)
bristly beard; bristly mustache; tiger whiskers
wattle (of a bird's neck)
balance spring; hairspring