embolic invagination
Invagination In*vag`i*na"tion, n. [L. pref. in- + vagina sheath.] [1913 Webster] 1. (Biol.) The condition of an invaginated organ or part. [1913 Webster]

2. The inward movement of the wall of a tissue or cell, to form a cavity; also, the cavity thus formed. [PJC]

3. Specifically: (Biol., Embryology) The inward movement of one part of the wall of a blastula, to form a gastrula; the process of gastrulation, in which layers of the ovum are differentiated. [1913 Webster +PJC]

Note: In {embolic invagination}, one half of the blastosphere is pushed in towards the other half, producing an embryonic form known as a gastrula. -- In {epibolic invagination}, a phenomenon in the development of some invertebrate ova, the epiblast appears to grow over or around the hypoblast. [1913 Webster]


The Collaborative International Dictionary of English. 2000.

Look at other dictionaries:

  • Invagination — In*vag i*na tion, n. [L. pref. in + vagina sheath.] [1913 Webster] 1. (Biol.) The condition of an invaginated organ or part. [1913 Webster] 2. The inward movement of the wall of a tissue or cell, to form a cavity; also, the cavity thus formed.… …   The Collaborative International Dictionary of English

  • Embolic — Em*bol ic, a. [Gr. ? to throw in. See {Embolism}.] 1. Embolismic. [1913 Webster] 2. (Med.) Pertaining to an embolism; produced by an embolism; as, an embolic abscess. [1913 Webster] 3. (Biol.) Pushing or growing in; said of a kind of invagination …   The Collaborative International Dictionary of English

  • embolic — /ɛmˈbɒlɪk/ (say em bolik) adjective 1. Pathology relating to an embolus or to embolism. 2. Embryology developing inwardly; related to a process of invagination …   Australian English dictionary

  • epibolic invagination — Invagination In*vag i*na tion, n. [L. pref. in + vagina sheath.] [1913 Webster] 1. (Biol.) The condition of an invaginated organ or part. [1913 Webster] 2. The inward movement of the wall of a tissue or cell, to form a cavity; also, the cavity… …   The Collaborative International Dictionary of English

  • Emboly — Em bo*ly, n. [Gr. ? a putting into.] (Biol.) Embolic invagination. See under {Invagination}. [1913 Webster] || …   The Collaborative International Dictionary of English

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