“+ adjective
Etymology: bi- (I) + penni- + -form
: resembling a feather barbed on both sides — used of certain muscles from the arrangement of their fibers
“+ adjective
Etymology: bi- (I) + penni- + -form
: resembling a feather barbed on both sides — used of certain muscles from the arrangement of their fibers
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012