| AlCr | aluminum crown |
|---|---|
| CCEI | Crown-Crisp Experimental Index |
| CH | case history; Chediak-Higashi [syndrome]; chiasma; Chinese hamster; chloral hydrate; cholesterol; Ch... |
| Cr | chromium; cranium, cranial; creatinine; crown |
| CRL | cell repository line; Certified Record Librarian; complement receptor location; complement receptor ... |
| crown inclination | <dentistry> A tooth movement in which the root of the tooth is tipped toward cheeks (lips) or toward the lingual (palate) of the mouth. (08 Jan 1998) |
|---|---|
| crown lengthening | Technique combining controlled eruptive tooth movement and incision of the supracrestal gingival attachment to allow for proper restoration of a destroyed or damaged crown of a tooth. Controlled eruption of the tooth is obtained using orthodontic appliances. During this eruptive phase, repeated incisions are made at the junctional epithelium of the sulcus and the supracrestal connective tissue to prevent coronal displacement of the gingiva and of the attachment apparatus. (12 Dec 1998) |
| crown of head | The topmost part of the head. Synonym: crown of head. (05 Mar 2000) |
| crown of tooth | The portion of a tooth covered with enamel. Synonym: corona dentis, anatomical crown. (05 Mar 2000) |
| crown of Venus | Papular lesions of secondary syphilis on the forehead near the hair margin. See: collar of Venus. (05 Mar 2000) |
| crown-rump length | In utero measurement corresponding to the sitting height (crown to rump) of the foetus. Length is considered a more accurate criterion of the age of the foetus than is the weight. The average crown-rump length of the foetus at term is 36 cm. (12 Dec 1998) |
| crown tubercle | Tubercle of cuneate nucleus, the bulbous rostral extremity of the fasciculus cuneatus corresponding to the position of the cunate nucleus, lying lateral to the clava and separated from the tuberculum cinereum on its lateral side by the posterior lateral sulcus. Synonym: tuberculum nuclei cuneati, tuberculum cuneatum, wedge-shaped tubercle. (05 Mar 2000) |
| tooth crown | The upper part of the tooth, which joins the lower part of the tooth (tooth root) at the cervix (tooth cervix) at a line called the cementoenamel junction. The entire surface of the crown is covered with enamel which is thicker at the extremity and becomes progressively thinner toward the cervix. (12 Dec 1998) |
| jacket crown | A hollow crown of acrylic resin, fused porcelain or cast gold, combinations of gold and acrylic or gold and porcelain; it fits over the prepared stump of the natural crown. (05 Mar 2000) |
| complete abortion | The complete expulsion or extraction from its mother of a foetus or embryo, complete expulsion of any other product of gestation. (e.g., hydatidiform mole). (05 Mar 2000) |
| complete achromatopsia | Achromatopsia with absent colour vision, nystagmus, reduced visual acuity, and light aversion. Synonym: rod monochromatism, typical achromatopsia. (05 Mar 2000) |
| complete antibody | An antibody which causes agglutination of erythrocytes when they are suspended either in saline or in a protein medium. (05 Mar 2000) |
| complete antigen | Any antigen capable of stimulating the formation of antibody with which it reacts in vivo or in vitro, as distinguished from incomplete antigen (hapten). (05 Mar 2000) |
| complete ascertainment | Method by which all families with at least one affected individual in a population are certain or have an equal chance of being identified by survey or an appropriate random sampling technique. (05 Mar 2000) |
| complete atrioventricular dissociation | A-V dissociation not interrupted by ventricular captures. Synonym: complete A-V block. (05 Mar 2000) |