Bristle

ceda

(stiff or coarse hair)

cerda

(stiff or coarse hair)

cerda

(hair or straw of a brush, broom etc.)

cerdamen

(hair or straw of a brush, broom etc.)

clin

(stiff or coarse hair)

crin

(stiff or coarse hair)

crines

(stiff or coarse hair)

seda

(stiff or coarse hair)

seta

(stiff or coarse hair)

erizarse

(to rise or stand erect, like bristle)

horripilarse

(to rise or stand erect, like bristle)

ponerse a la defensiva

(to be on one's guard)