| Arneth classification | A classification of the polymorphonuclear neutrophils according to the number of their nuclear lobes. See: Arneth stages. (05 Mar 2000) |
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| artificial classification | <zoology> Classification based on convenient or conspicuous diagnostic characters without attention to characters indicating relationship, often a classification based on a single arbitrarily chosen character, rather than an evaluation of the totality of characters. (09 Jan 1998) |
| Black's classification | A classification of cavities of the teeth based upon the tooth surface(s) involved. (05 Mar 2000) |
| Caldwell-Moloy classification | A classification of the variations in the female pelvis; namely gynecoid, android, anthropoid, and platypelloid pelvis, based on the type of the posterior and anterior segments of the inlet. (05 Mar 2000) |
| Galton's system of classification of fingerprints | A system of classification based on the variations in the patterns of the ridges, which are grouped into arches, loops, and whorls (A.L.W. Or arch-loop-whorl system). "Arches are formed when the ridges run from one side to the other of the bulb of the digit, without making any backward turn, but no twist; whorls, when there is a turn through at least one complete circle; they are also considered to include all duplex spirals." The abbreviations used in making a record of fingerprint's are: a, arch; l, loop; w, whorl; i, loop with an inner (thumb side) slope; o, loop with an outer (little-finger side) slope. The ten digits are registered in four groups as follows, distinguished by capital letters: A, the fore, middle, and ring fingers of the right hand; B, the fore, middle, and ring fingers of the left hand; C, the thumb and little finger of the right hand; D, the thumb and little finger of the left hand. See: dermatoglyphics. (05 Mar 2000) |
| Gell and Coombs Classification | A classification system that differentiates the 4 types of hypersensitivity reactions: Type I: anaphylactic reactions, Type II: cytotoxic reactions, Type III: immune complex reactions, and Type IV: cell-mediated reactions. (05 Mar 2000) |
| Rappaport classification | A histologic classification of lymphomas in use before the availability of recent methods for identification of B-and T-type lymphocytes. (05 Mar 2000) |
| marital status | A demographic parameter indicating a person's status with respect to marriage, divorce, widowhood, singleness, etc. (12 Dec 1998) |
| vertical classification | <zoology> Classification which stresses common descent and tends to unite ancestral and descendant groups of a phyletic line in a single higher taxon, separating them from contemporaneous taxa having reached a similar grade of evolutionary change. Compare: Horizontal classification. (09 Jan 1998) |
| mental status schedule | Standardised clinical interview used to assess current psychopathology by scaling patient responses to the questions. (12 Dec 1998) |
| phenetic classification | <zoology> Classification based on degree of overall similarity. (09 Jan 1998) |
| Rye classification | Classification of Hodgkin's disease according to lymphocyte predominance, nodular sclerosing, mixed cellularity, and lymphocyte depletion types. Origin: Rye, NY, 1965 (05 Mar 2000) |
| cladistic classification | <zoology> Classification based on recency of common descent, i.e. Categories depend on the position of the branching points on the inferred phylogenetic tree. (09 Jan 1998) |
| classification | <zoology> The systematic arrangement of similar entities on the basis of certain differing characteristics and the basis of their relationships. (09 Jan 1998) |
| wetland indicator status | <ecology> The exclusiveness with which a plant species occurs in wetland, the different indicator categories (i.e., facultative species, and obligate wetland species) are defined elsewhere in this glossary. (09 Oct 1997) |