| malocclusion, angle class III | Malocclusion in which the mandible is anterior to the maxilla as reflected by the first relationship of the first permanent molar (mesioclusion). (12 Dec 1998) |
|---|---|
| genes, MHC class I | Genetic loci in the vertebrate major histocompatibility complex which encode polymorphic characteristics not related to immune responsiveness or complement activity, e.g., b loci (chicken), dla (dog), gpla (guinea pig), h-2 (mouse), rt-1 (rat), HLA-a, -b, and -c class I genes of man. (12 Dec 1998) |
| genes, MHC class II | Genetic loci in the vertebrate major histocompatibility complex that encode polymorphic products which control the immune response to specific antigens. The genes are found in the HLA-d region in humans and in the I region in mice. (12 Dec 1998) |
| MHC class II protein | <protein> The antigen-presenting molecule found primarily on macrophages and B lymphocytes. (09 Oct 1997) |
| MHC class I protein | <protein> The antigen-presenting molecule found on all nucleated vertebrate cells. (09 Oct 1997) |
| class | <biology> A taxonomic classification between division or phylum and order. (09 Oct 1997) |
| class aves | <ornithology, zoology> A biological class that is composed of all the birds (for example, penguins, pigeons, eagles, canaries, vultures, etc.) (09 Oct 1997) |
| class i | Perennial or intermittent streams that provide a source of water for domestic use. Class I streams are used by large numbers of anadromous fish or significant sports fish for spawning, rearing, or migration, or are major tributaries to other Class I streams. (05 Dec 1998) |
| class I antigens | Cell membrane bound glycoproteins that are coded by genes of the major histocompatibility complex. (05 Mar 2000) |
| class II | Perennial or intermittent streams that are used by fish for spawning, rearing, or migration. Class II streams may be tributaries to Class I streams or other Class II streams. (05 Dec 1998) |
| class II antigens | A cell membrane glycoprotein encoded by genes of the major histocompatibility complex. These antigens are distributed on antigen-presenting cells such as macrophages, B-cells, and dendritic cells. (05 Mar 2000) |
| class III | All other perennial streams not meeting higher class criteria. (05 Dec 1998) |
| class III antigens | Non-cell membrane molecules that are encoded by the S region of the major histocompatibility complex. These antigens are not involved in determining histocompatibility and include the complement proteins. (05 Mar 2000) |
| class III malocclusion | <dentistry> A Malocclusion where your lower teeth stick out past your upper teeth. This is also called an underbite. (05 Mar 2000) |
| class II malocclusion | <dentistry> A Malocclusion where your upper teeth stick out past your lower teeth. This is also called an overbite or buck teeth (05 Mar 2000) |