| InV group antigen | Allotypic antigens that are present on human kappa immunoglobulin light chains. Synonym: InV group antigen. (05 Mar 2000) |
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| invA protein | <chemical> Amino acid sequence given in first source; required for salmonella to invade epithelial cells Synonym: inva gene product (05 Dec 1998) |
| invaccination | Accidental inoculation of some disease, e.g., syphilis, during vaccination. (05 Mar 2000) |
| invade | 1. To go into or upon; to pass within the confines of; to enter; used of forcible or rude ingress. "Which becomes a body, and doth then invade The state of life, out of the grisly shade." (Spenser) 2. To enter with hostile intentions; to enter with a view to conquest or plunder; to make an irruption into; to attack; as, the Romans invaded Great Britain. "Such an enemy Is risen to invade us." (Milton) 3. To attack; to infringe; to encroach on; to violate; as, the king invaded the rights of the people. 4. To grow or spread over; to affect injuriously and progressively; as, gangrene invades healthy tissue. Synonym: To attack, assail, encroach upon. See Attack. Origin: L. Invadere, invasum; pref. In- in + vadere to go, akin to E. Wade: cf. OF. Invader, F. Envahir. See Wade. Source: Websters Dictionary (01 Mar 1998) |
| invaginate | To ensheathe, infold, or insert a structure within itself or another. Origin: L. In, in, + vagina, a sheath (05 Mar 2000) |
| invaginate planula | Embryonic stage of an animal when gastrulation occurs, follows blastula stage. (18 Nov 1997) |
| invaginated | <biology> Sheathed. Having one portion of a hollow organ drawn back within another portion. Source: Websters Dictionary (01 Mar 1998) |
| invagination | 1. <biology> The condition of an invaginated organ or part. 2. <biology> One of the methods by which the various germinal layers of the ovum are differentiated. 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. Origin: L. Pref. In- + vagina sheath. Source: Websters Dictionary (01 Mar 1998) |
| invaginator | An instrument for pushing inward any tissue. (05 Mar 2000) |
| invalid | 1. Weak; sick. 2. A person partially or completely disabled. Origin: L. In-neg. + validus, strong (05 Mar 2000) |
| invalidate | To weaken or make valueless: to discredit. (18 Nov 1997) |
| invalidism | The condition of being an invalid. (05 Mar 2000) |
| invariable | <mathematics> An invariable quantity; a constant. Source: Websters Dictionary (01 Mar 1998) |
| invariance | <mathematics> The property of remaining invariable under prescribed or implied conditions. Source: Websters Dictionary (01 Mar 1998) |
| invariant | <mathematics> An invariable quantity; specifically, a function of the coefficients of one or more forms, which remains unaltered, when these undergo suitable linear transformations. Source: Websters Dictionary (01 Mar 1998) |
| immunoglobulin inv allotypes | Hereditary allotypic markers associated with the light chain of IgG. (12 Dec 1998) |
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| factor Inv | A factor that determines certain of the allotypes of human immunoglobulins; found on the kappa chains of IgG, IgA, IgM, and Bence Jones protein. (05 Mar 2000) |