Defn: The anterior end of the notochord and its bony sheath in the base of cartilaginous crania.
CEPHALOTHORAX
Ceph`a*lo*tho"rax, n. Etym: [Cephalo- + thorax.] (Zoöl.)
Defn: The anterior portion of any one of the Arachnida and higher
Crustacea, consisting of the united head and thorax.
CEPHALOTOME
Ceph"a*lo*tome, n. Etym: [Cephalo- + Gr. (Med.)
Defn: An instrument for cutting into the fetal head, to facilitate delivery.
CEPHALOTOMY
Ceph`a*lot"o*my, n.
1. Dissection or opening of the head.
2. (Med.)
Defn: Craniotomy; — usually applied to bisection of the fetal head with a saw.
CEPHALOTRIBE
Ceph"a*lo*tribe, n. Etym: [Cephalo- + Gr. to rub, grind.]