| slope | 1. An oblique direction; a line or direction including from a horizontal line or direction; also, sometimes, an inclination, as of one line or surface to another. 2. Any ground whose surface forms an angle with the plane of the horizon. " buildings the summit and slope of a hill." (Macaulay) "Under the slopes of Pisgah." (Deut. Iv. 49. (Rev. Ver)) A slope, considered as descending, is a declivity; considered as ascending, an acclivity. <geometry> Slope of a plane, the direction of the plane; as, parallel planes have the same slope. Origin: Formed (like abode fr. Abide) from OE. Slipen. See Slip. Source: Websters Dictionary (01 Mar 1998) |
|---|---|
| slope culture | A culture made on the slanting surface of a medium which has been solidified in a test tube inclined from the perpendicular so as to give a greater area than that of the lumen of the tube. Synonym: slope culture. (05 Mar 2000) |
| cohort | <statistics> A cohort is a group of animals of the same species, identified by a common characteristic, which are studied over a period of time as part of a scientific or medical investigation. (09 Oct 1997) |
| cohort effect | Variation in health status arising from different causal factors to which each birth cohort in a population is exposed as environment and society change. (12 Dec 1998) |
| cohort studies | Studies in which subsets of a defined population are identified. These groups may or may not be exposed to factors hypothesised to influence the probability of the occurrence of a particular disease or other outcome. Cohorts are defined populations which, as a whole, are followed in an attempt to determine distinguishing subgroup characteristics. (12 Dec 1998) |
| cohort study | A study using epidemiological methods, such as a clinical trial, in which a cohort with a particular attribute (e.g., smokers, recipients of a drug) is followed prospectively and compared for some outcome (e.g., disease, cure) with another cohort not possessing the attribute. (05 Mar 2000) |