1. (n.) A filament.

2. (n.) Any villous or hairy covering; a fine fiber or filament, as of the nerves.

Vandyke acuminate aggravate anger annoy arise arouse badger bait barb barbel be alive be at be keen beard beaver bedevil beset bite blow up boil boil over bother bramble bridle bridle up brier bristle up bristle with bristles brown off bug bullyrag burn burn up burr cactus capillament catchweed chafe chivy cilium cleavers coat cock up corrugate crawl crinkle crumple cut devil discompose distemper disturb dog down embitter exasperate exercise fash flare up fleece flip out fret fume fur get get mad get sore get up goatee goose grass gripe hair harass harry have an edge heckle hector horripilate horsehair hound huff imperial incense inflame irk irritate jump up mane miff molest nag needle nettle nudzh peach fuzz peeve pelt persecute pester pick on pile pine needle pique plague pluck the beard pother prick prickle provoke pubescence pubic hair quill rage ramp rankle reach boiling point rear rear up ride rile rise rise up roil ruffle rumple see red seethe set on edge set up seta setula setule shag side whiskers sit bolt upright sit up spicule spiculum spike spikelet spine stand up stick stick up sticker sting stir the blood stir up striga stubble swarm tease teem thistle thorn torment try the patience tuft tweak the nose upheave uprear uprise vex whisker whiskers wool work up worry wrinkle yucca