apophysis

Definitions

  • WordNet 3.6
    • n apophysis (anatomy) a natural outgrowth or projection on an organ or body part such as the process of a vertebra
    • n apophysis (botany) a natural swelling or enlargement: at the base of the stalk or seta in certain mosses or on the cone scale of certain conifers
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Webster's Revised Unabridged Dictionary
    • Apophysis (Anat) A marked prominence or process on any part of a bone.
    • Apophysis (Bot) An enlargement at the top of a pedicel or stem, as seen in certain mosses.
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Century Dictionary and Cyclopedia
    • n apophysis In anatomy: Any process of bone; an out-growth of bone; a mere projection or protuberance, which has no independent ossific center, and is thus distinguished from an epiphysis (which see); specifically, any process of a vertebra, whether it has such a center, and thus is epiphysial in nature, or not: in the former case, a vertebral apophysis is called autogenous or endogenous; in the latter, exogenous. A process or outgrowth of some organ of the body, as the brain: as, apophysis cerebri, the pituitary body. See cut under brain. In chitons, a process of one of the plates, inserted into the mantle. The principal vertebral apophyses are distinguished as anapophysis, diapophysis, epapophysis, hemapophysis, hypapophysis, metapophysis, neurapophysis, parapophysis, pleurapophysis, and zygapophysis. See these words.
    • n apophysis In botany, a swelling under the base of the theca or spore-case of some mosses, as in species of Splachnum. See cut under Andreæa.
    • n apophysis In geology, a term applied to the arms which often extend outward in a horizontal direction from the main mass or dike of an intrusive igneous rock.
    • n apophysis In architecture, same as apophyge.
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Etymology

Webster's Revised Unabridged Dictionary
NL., fr. Gr. offshoot, process of a bone, fr. to grow from; from + , , to grow

Usage

In literature:

Every cavity, apophysis, and curvature was imitated, and each bone executed its proper movements.
"The Works of Edgar Allan Poe Volume 4 (of 5) of the Raven Edition" by Edgar Allan Poe
The seta widens out at the base of the capsule into a region known as the apophysis.
"Encyclopaedia Britannica, 11th Edition, Volume 4, Part 3" by Various
The position of the umbo on the apophysis is the basis of Koehne's subdivision of the section Haploxylon.
"The Genus Pinus" by George Russell Shaw
The basisphenoid has on each side a well marked pterygoidal apophysis.
"Trees. A Woodland Notebook" by Herbert Maxwell
The basisphenoid has on each side a well marked pterygoidal apophysis.
"Extinct Birds" by Walter Rothschild
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