| chlorine | <chemical> Chlorine. A greenish-yellow, diatomic gas that is a member of the halogen family of elements. It has the atomic symbol cl, atomic number 17, and atomic weight 70.906. It is a powerful irritant that can cause fatal pulmonary oedema. Chlorine is used in manufacturing, as a reagent in synthetic chemistry, for water purification, and in the production of chlorinated lime, which is used in fabric bleaching. Chemical name: Chlorine (12 Dec 1998) |
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| chlorine acne | An occupational acne-like eruption due to prolonged contact with certain chlorinated compounds (naphthalenes and diphenyls); keratinous plugs (comedones) form in the pilosebaceous orifices, and variously sized small papules (2 to 4 mm) develop. Synonym: chlorine acne, tar acne. (05 Mar 2000) |
| chlorine compounds | Inorganic compounds that contain chlorine as an integral part of the molecule. (12 Dec 1998) |
| chlorine group | The halogens. (05 Mar 2000) |
| chlorine water | A water that contains the chlorides of sodium, potassium, calcium, and magnesium in varying amounts. (05 Mar 2000) |
| residual | Remaining or left behind. Origin: L. Residuus (18 Nov 1997) |
| residual abscess | An abscess recurring at the site of a former abscess resulting from persistence of microbes and pus. (05 Mar 2000) |
| residual affinity | Secondary forces that enable apparently saturated atoms, ions, or molecules to attract other atoms or groups, causing such phenomena as complex formation, hydration, adsorption, etc. (05 Mar 2000) |
| residual air | The volume of air remaining in the lungs at the end of a maximal expiration. Common abbreviation is rv. (12 Dec 1998) |
| residual body | 1. <cell biology> Secondary lysosomes containing material that cannot be digested. 2. <biology> The surplus cytoplasm shed by spermatids during their differentiation to spermatozoa. Usually the cytoplasm from several spermatids connected by cytoplasmic bridges. 3. <microbiology> Surplus cytoplasm containing pigment and left over after production of merozoites during schizogony of malaria parasites. (18 Nov 1997) |
| residual body of Regaud | The excess cytoplasm that separates from the spermatozoon during spermiogenesis. (05 Mar 2000) |
| residual capacity | The volume of air remaining in the lungs at the end of a maximal expiration. Common abbreviation is rv. (12 Dec 1998) |
| residual cleft | The remnants of the pituitary diverticulum that occur between the pars distalis and pars intermedia; a distinct lumen is present in some animals, but, in humans, is present only during prenatal development and sometimes in young children. Synonym: residual lumen. (05 Mar 2000) |
| residual cyst | The persistence of an apical periodontal cyst that remains after tooth extraction. (05 Mar 2000) |
| residual error | The estimated discrepancy between the actual measured datum and the value for that value computed after a model has been fitted to the set of the data by an estimator. (05 Mar 2000) |