| polygon | <geometry> A plane figure having many angles, and consequently many sides; especially, one whose perimeter consists of more than four sides; any figure having many angles. <mechanics> Polygon of forces, a polygonal figure, the sides of which, taken successively, represent, in length and direction, several forces acting simultaneously upon one point, so that the side necessary to complete the figure represents the resultant of those forces. Cf. Parallelogram of forces, under Parallelogram. Origin: Gr. Polygonal; many + angle: cf. F. Polygone. Source: Websters Dictionary (01 Mar 1998) |
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| polygonaceae | The only family of the buckwheat order of dicotyledonous flowering plants. It has 40 genera of herbs, shrubs, and trees. (12 Dec 1998) |
| polygonaceous | <botany> Of or pertaining to a natural order of apetalous plants (Polygonaceae), of which the knotweeds (species of Polygonum) are the type, and which includes also the docks (Rumex), the buckwheat, rhubarb, sea grape (Coccoloba), and several other genera. See: Polygonum. Source: Websters Dictionary (01 Mar 1998) |
| polygoneutic | <zoology> Having two or more broods in a season. Origin: Poly- + Gr. Offspring. Source: Websters Dictionary (01 Mar 1998) |
| polygonum | <botany> A genus of plants embracing a large number of species, including bistort, knotweed, smartweed, etc. Origin: NL, fr. Gr. A kind of plant; many + the knee, a joint of a plant. So called in allusion to the numerous joints. Source: Websters Dictionary (01 Mar 1998) |
| polygony | <botany> Any plant of the genus Polygonum. Source: Websters Dictionary (01 Mar 1998) |