| NIPTS | noise-induced permanent threshold shift |
|---|---|
| NSCS | night shift call system |
| PDS | pain-dysfunction syndrome; paroxysmal depolarizing shift; patient data system; Patient-Doctor Societ... |
| PSVER | pattern shift visual evoked response |
| SDS | same day surgery; school dental services; self-rating depression scale; sensory deprivation syndrome... |
| chemical complexity | The level measured, via a chemical assay, of a DNA component. (05 Mar 2000) |
|---|---|
| chemical conjunctivitis | Conjunctival inflammation due to chemical irritants. (05 Mar 2000) |
| chemical dermatitis | Allergic contact dermatitis or primary irritation dermatitis due to application of chemicals; usually characterised by erythema, oedema, and vesiculation of the exposed or contacted site. (05 Mar 2000) |
| chemical diabetes | A mild form of diabetes mellitus in which the patient displays no overt symptoms, but displays certain abnormal responses to diagnostic procedures, such as an elevated fasting blood glucose concentration or reduced glucose tolerance. Synonym: chemical diabetes. (05 Mar 2000) |
| chemical energy | Energy liberated or absorbed by a chemical reaction, e.g., oxidation of carbon, or absorbed in the formation of a chemical compound. (05 Mar 2000) |
| chemical equation | A representation of a chemical reaction in which chemical symbols represent reactants on the left side and products on the right side. (09 Oct 1997) |
| chemical equilibrium | <chemistry> A state in a reversible chemical reaction at which the reactants are turning into products at the same rate as the products are turning back into the reactants, so that the amounts of each reactant and product remains constant. (09 Oct 1997) |
| chemical evolution | The theory of the process by which life arose from inorganic matter. (05 Mar 2000) |
| chemical eye injuries | <ophthalmology> There are basically two types of chemical eye injury: acids and bases, with the latter being more severe. Alkali injury to the eye results in a penetrating injury known as liquefaction necrosis. Acid injury results in coagulation necrosis. Both injuries require immediate copious eye irrigation with water in addition to medical attention. (05 Jan 1998) |
| chemical formula | <chemistry> A represention of the elemental composition of a species, subscripts are used to indicate the relative numbers of atoms of each kind of element present. (09 Oct 1997) |
| chemical industry | The aggregate enterprise of manufacturing and technically producing chemicals. (12 Dec 1998) |
| chemical knife | Term sometimes used for restriction endonuclease. (05 Mar 2000) |
| chemical oxygen demand | The amount of dissolved oxygen required to combine with chemicals in wastewater. A measure of the oxygen equivalent of that portion of organic matter that is susceptible to oxidation by a strong chemical oxidizing agent. (05 Dec 1998) |
| chemical peel | A special plastic surgical procedure in which a chemical is applied to the face which removes the outer layer of the skin. This procedure is used to remove fine lines and wrinkles in the face. After a chemical peel the skin is usually very sensitive to sunlight exposure. (27 Sep 1997) |
| chemical peeling | Application of a cauterant to the skin for the purpose of causing a superficial destruction of the epidermis and upper layers of the dermis. After healing, the treated area has new epithelium. (12 Dec 1998) |