Sphenoid bone
Sphenoid Sphe"noid, a. [Gr. ???; sfh`n a wedge + e'i^dos form: cf. F. sph['e]no["i]de.] 1. Wedge-shaped; as, a sphenoid crystal. [1913 Webster]

2. (Anat.) Of or pertaining to the sphenoid bone. [1913 Webster]

{Sphenoid bone} (Anat.), an irregularly shaped bone in front of the occipital in the base of the skull of the higher vertebrates. It is composed of several fetal bones which become united the adult. See {Alisphenoid}, {Basisphenoid}, {Orbitosphenoid}, {Presphenoid}. [1913 Webster]


The Collaborative International Dictionary of English. 2000.

Look at other dictionaries:

  • Sphenoid bone — Bone: Sphenoid bone Cranial Bones. Only the end of the wing of the sphenoid bone is visible …   Wikipedia

  • sphenoid bone — noun butterfly shaped bone at the base of the skull • Syn: ↑sphenoid, ↑os sphenoidale • Hypernyms: ↑bone, ↑os • Part Holonyms: ↑skull • Part Meronyms: ↑ …   Useful english dictionary

  • sphenoid bone — noun A compound bone at the base of the skull behind the eyes …   Wiktionary

  • sphenoid bone — a bone forming the base of the cranium behind the eyes. It consists of a body, containing air spaces continuous with the nasal cavity (see paranasal sinuses); two wings that form part of the orbits; and two pterygoid processes projecting down… …   Medical dictionary

  • sphenoid bone — a bone forming the base of the cranium behind the eyes. It consists of a body, containing air spaces continuous with the nasal cavity (see paranasal sinuses); two wings that form part of the orbits; and two pterygoid processes projecting down… …   The new mediacal dictionary

  • Greater wing of sphenoid bone — Infobox Bone Name = Greater wing of sphenoid bone Latin = ala major ossis sphenoidalis GraySubject = 35 GrayPage = 149 Caption = Figure 1: Sphenoid bone, upper surface. Caption2 = Figure 2: Sphenoid bone, anterior and inferior surfaces. Width =… …   Wikipedia

  • Body of sphenoid bone — Infobox Bone Name = Body of sphenoid bone Latin = corpus ossis sphenoidalis GraySubject = 35 GrayPage = 147 Caption = Figure 2: Sphenoid bone, anterior and inferior surfaces. Caption2 = Figure 3: Sphenoid bone, upper and posterior surfaces.… …   Wikipedia

  • Lesser wing of sphenoid bone — Infobox Bone Name = PAGENAME Latin = alæ parvæ GraySubject = 35 GrayPage = 151 Caption = Figure 1: Sphenoid bone, upper surface. Caption2 = Figure 2: Sphenoid bone, anterior and inferior surfaces. Width = 300 MusclesOrigins = MusclesInsertions =… …   Wikipedia

  • Spine of sphenoid bone — Infobox Bone Name = Spine of sphenoid bone Latin = s. ossis sphenoidalis GraySubject = 35 GrayPage = 150 Caption = Sphenoid bone. Upper surface. (Spina angularis labeled at bottom left.) Caption2 = Articulation of the mandible. Medial aspect.… …   Wikipedia

  • postsphenoid part of sphenoid bone — postsphenoidal part of sphenoid bone the posterior portion of the sphenoid bone; in the fetus it consists of separate basisphenoid, pterygoid, and alisphenoid parts, first cartilaginous and later bony, which fuse to each other and to the… …   Medical dictionary

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