| metameric nervous system | That part of the nervous system which innervates body structures developed in ontogeny from the segmentally arranged somites or, in the head region, branchial arches. The term implies reference to the neural mechanisms intrinsic to the spinal cord and brainstem (represented by the sensory nuclei, motoneuronal cell groups, and their associated interneurons in the reticular formation); by strict definition it should exclude the autonomic nervous system. (05 Mar 2000) |
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| metamerism | <biology> The condition of developing body segments (such as in earthworms). (09 Oct 1997) |
| metamorphic | 1. Subject to change; changeable; variable. 2. Causing a change of structure. 3. <geology> Pertaining to, produced by, or exhibiting, certain changes which minerals or rocks may have undergone since their original deposition; especially applied to the recrystallization which sedimentary rocks have undergone through the influence of heat and pressure, after which they are called metamorphic rocks. See: Metamorphosis. Source: Websters Dictionary (01 Mar 1998) |
| metamorphism | <geology> The state or quality of being metamorphic; the process by which the material of rock masses has been more or less recrystallized by heat, pressure, etc, as in the change of sedimentary limestone to marble. Source: Websters Dictionary (01 Mar 1998) |
| metamorphist | One who believes that the body of Christ was merged into the Deity when he ascended. Source: Websters Dictionary (01 Mar 1998) |
| metamorphize | To metamorphose. Source: Websters Dictionary (01 Mar 1998) |
| metamorphopsia | Distortion of visual images. Origin: meta-+ G. Morphe, shape, + opsis, vision (05 Mar 2000) |
| metamorphose | To change into a different form; to transform; to transmute. "And earth was metamorphosed into man." (Dryden) Origin: Cf. F. Metamorphoser. Same as Metamorphosis. Origin: Cf. F. Metamorphose. See Metamorphosis. Source: Websters Dictionary (01 Mar 1998) |
| metamorphoser | One who metamorphoses. Source: Websters Dictionary (01 Mar 1998) |
| metamorphosic | Changing the form; transforming. Source: Websters Dictionary (01 Mar 1998) |
| metamorphosis | <cell biology> Change of body form, for example in the development of the adult frog from the tadpole or the butterfly from the caterpillar. (18 Nov 1997) |
| metamorphotic | Relating to or marked by metamorphosis. (05 Mar 2000) |
| metamyelocyte | A transitional form of myelocyte with nuclear construction that is intermediate between the mature myelocyte (myelocyte C of Sabin) and the two-lobed granular leukocyte. Synonym: juvenile cell. Origin: meta-+ G. Myelos, marrow, + kytos, cell (05 Mar 2000) |
| metanalysis | A statistical technique where all data from all available studies of something are combined, regardless of data quality. The technique is used by researchers to get a maximum of statistical information without worrying about distortion in the results. (09 Oct 1997) |
| metanauplius | <zoology> A larval crustacean in a stage following the nauplius, and having about seven pairs of appendages. Origin: NL. See Meta-, and Nauplius. Source: Websters Dictionary (01 Mar 1998) |