【医】 bullet trephine
ball; globe; orb; sphere; the earth
【医】 ball; balloon; bulb; bulbi; bulbo-; bulbus; globi; globus; glomera
glomus; orb; sphaer-; sphaero-; sphere; sphero-
beginning or end; cobbra; conk; crumpet; end; first; garret; hair; head
leading; nob; noddle; pate; sconce; side; top; twopenny
【医】 capita; caput; cephal-; cephalo-; head; kephal-; kephalo-
【医】 hole saw; trepan; trephine; trephinement; trephining