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ek letter lambda (as, the lambdoid suture between the occipital and parietal bones of the skull.

Having the nose narrow; -- said esp. of the skull. Opposed to platyrhine.

A surgical instrument used to raise a depressed part of the skull.

A blockhead; a dunce; a numskull. Shak. Milton.

own representative of a special family (Lophiomyidæ), remarkable for the structure of the skull. It has handlike feet, and the hair is peculiar in structure and arrangement.

Pertaining to the maxillary and palatine regions of the skull; as, the maxillo-palatine process of the maxilla. Also used as n.

Pertaining to the maxillary and turbinal regions of the skull. -- n.

The jaw; the head or skull. [Obs.] Shak.

asal passage; as, a nasal vowel; a nasal utterance. Nasal bones (Anat.), two bones of the skull, in front of the frontals. -- Nasal index (Anat.), in the skull, the ratio of the transverse the base of the aperture to the nasion, which latter distance is taken as the standard, equal to 100.

the Rhine Province, in which were found parts of a skeleton of an early type of man. The skull is characterized by extreme dolichocephaly, flat, retreating forehead, with closed frontal sutures, and enormous superciliary ridges. The cranial capacity is estimated at about 1,220 cubic centimeters, being about midway bet…

Like, or pertaining to, the Neanderthal skull, or the type of man it represents.

keleton around which the centra of the vertebræ and the posterior part of the base of the skull are developed; the chorda dorsalis. See Illust. of Ectoderm.

The region of the skull between the two parietal foramina where the closure of the sagittal suture usually begins.

occipital bone. Occipital bone (Anat.), the bone which forms the posterior segment of the skull and surrounds the great foramen by which the spinal cord leaves the cranium. In the higher vertebrates it is usually composed of four bones, which become consolidated in the adult. -- Occipital point (Anat.), the point of t…

The back, or posterior, part of the head or skull; the region of the occipital bone.

The middle of the posterior, or dorsal, margin of the great foramen of the skull.

like fishes having the scapular arch attached to the vertebræ, but not connected with the skull.

The cavity or socket of the skull in which the eye and its appendages are situated.

pertaining to an orbit. "Orbital revolution." J. D. Forbes. Orbital index (Anat.), in the skull, the ratio of the vertical height to the transverse width of the orbit, which is taken as the standard, equal to 100.

Having the front of the head, or the skull, nearly perpendicular, not retreating backwards above the jaws; -- opposed to Ant: prognathous. See Gnathic index, under Gnathic.