Cephalanthium
(||Ceph`a*lan"thi*um) n. [NL., fr. Gr. + flower.] (Bot.) Same as Anthodium.
Cephalaspis
(||Ceph`a*las"pis) n. [NL., fr. Gr. kefalh` head + a shield.] (Paleon.) A genus of fossil
ganoid fishes found in the old red sandstone or Devonian formation. The head is large, and protected
by a broad shield-shaped helmet prolonged behind into two lateral points.
Cephalata
(||Ceph`a*la"ta) n. pl. [NL., fr. Gr. kefalh` head.] (Zoöl.) A large division of Mollusca, including
all except the bivalves; — so called because the head is distinctly developed. See Illustration in Appendix.
Cephalate
(Ceph"a*late) a. (Zoöl.) Having a head.
Cephalic
(Ce*phal"ic) a. [L. cephalicus, Gr. fr. kefalh` head: cf. F. céphalique.] (Anat.) Of or pertaining
to the head. See the Note under Anterior.
Cephalic index (Anat.),
the ratio of the breadth of the cranium to the length, which is taken as the
standard, and equal to 100; the breadth index. — Cephalic vein, a large vein running from the back
of the head alond the arm; — so named because the ancients used to open it for disorders of the head.
Dunglison.
Cephalic
(Ce*pha"lic), n. A medicine for headache, or other disorder in the head.
Cephalitis
(||Ceph`a*li"tis) n. [NL., fr. Gr. kefalh` head + -itis.] (Med.) Same as Phrenitis.
Cephalization
(Ceph`a*li*za"tion) n. Domination of the head in animal life as expressed in the physical
structure; localization of important organs or parts in or near the head, in animal development. Dana.
Cephalo-
(Ceph"a*lo-) kefalh` head.]—> A combining form denoting the head, of the head, connected
with the head; as, cephalosome, cephalopod.
Cephalocercal
(Ceph`a*lo*cer"cal) a. [Cephalo- + Gr. tail.] (Zoöl.) Relating to the long axis of the body.
Cephaloid
(Ceph"a*loid) a. [Cephalo- + -oid.] Shaped like the head. Craing.
Cephalology
(Ceph`a*lol"o*gy) n. [Cephalo- + -logy.] The science which treats of the head.
Cephalomere
(Ceph"a*lo*mere) n. [Cephalo- + -mere.] (Zoöl.) One of the somites (arthromeres) which
make up the head of arthropods. Packard.
Cephalometer
(Ceph`a*lom"e*ter) n. [Cephalo- + -meter.] (Med.) An instrument measuring the dimensions
of the head of a fetus during delivery.
Cephalon
(||Ceph"a*lon) n. (Zoöl.) The head.
Cephalophora
(||Ceph`a*loph"o*ra) n. pl. [NL., fr. Gr. kefalh` head + to bear.] (Zoöl.) The cephalata.
Cephalopod
(Ceph"a*lo*pod Ceph"a*lo*pode) , n. (Zoöl.) One of the Cephalopoda.
Cephalopoda
(||Ceph`a*lop"o*da) n. pl. [NL., gr. Gr. kefalh` head + -poda: cf. F. céphalopode.] (Zoöl.)
The highest class of Mollusca.
They have, around the front of the head, a group of elongated muscular arms, which are usually furnished
with prehensile suckers or hooks. The head is highly developed, with large, well organized eyes and
ears, and usually with a cartilaginous brain case. The higher forms, as the cuttlefishes, squids, and
octopi, swim rapidly by ejecting a jet of water from the tubular siphon beneath the head. They have a
pair of powerful horny jaws shaped like a parrot's beak, and a bag of inklike fluid which they can eject
from the siphon, thus clouding the water in order to escape from their enemies. They are divided into