| diagonal conjugate diameter | The anteroposterior dimension of the inlet that measures the clinical distance from the promontory of the sacrum to the lower margin of the symphysis pubica. Synonym: conjugata diagonalis, diagonal conjugate diameter, false conjugate. (05 Mar 2000) |
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| diagonal section | A diagonal cross section attained by slicing, actually or through imaging techniques, the body or any part of the body or anatomic structure, in any plane which does not parallel the longitudinal axis or intersect it at a right angle, i.e., which is neither longitudinal (vertical) nor transverse (horizontal). Synonym: diagonal section. (05 Mar 2000) |
| diagonalis stria | See: Broca's diagonal band. (05 Mar 2000) |
| diagram | 1. <geometry> A figure or drawing made to illustrate a statement, or facilitate a demonstration; a plan. 2. Any simple drawing made for mathematical or scientific purposes, or to assist a verbal explanation which refers to it; a mechanical drawing, as distinguished from an artistical one. Indicator diagram. <engineering> See Indicator card, under indicator Origin: Gr, fr. To mark out by lines; through + to draw, write: cf. F. Diagramme. See Graphic. Source: Websters Dictionary (01 Mar 1998) |
| diagraph | A drawing instrument, combining a protractor and scale. Origin: Gr. To draw: cf. F. Diagraphe. See Diagram. Source: Websters Dictionary (01 Mar 1998) |
| diagraphic | Alternative form of descriptive. Origin: Cf. F. Diagraphique. Source: Websters Dictionary (01 Mar 1998) |
| diagraphical | Alternative form of descriptive. Origin: Cf. F. Diagraphique. Source: Websters Dictionary (01 Mar 1998) |
| diagraphics | The art or science of descriptive drawing; especially, the art or science of drawing by mechanical appliances and mathematical rule. Source: Websters Dictionary (01 Mar 1998) |