| pentagon | <geometry> A plane figure having five angles, and, consequently, five sides; any figure having five angles. Regular pentagon, a pentagon in which the angles are all equal, and the sides all equal. Origin: Gr.; (see Penta-) + gwnia angle: cf. L. Pentagonium, F. Pentagone. Source: Websters Dictionary (01 Mar 1998) |
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| pentagraphic | Pantographic. See Pantograph. Origin: Corrupted fr. Pantographic, -ical. Source: Websters Dictionary (01 Mar 1998) |
| pentagraphical | Pantographic. See Pantograph. Origin: Corrupted fr. Pantographic, -ical. Source: Websters Dictionary (01 Mar 1998) |
| pentagynia | <botany> A Linnaean order of plants, having five styles or pistils. Origin: NL, fr. Gr. (see Penta-) + female. Source: Websters Dictionary (01 Mar 1998) |
| pentagynous | <botany> Of or pertaining to plants of the order Pentagyna; having five styles. Source: Websters Dictionary (01 Mar 1998) |
| pentail | <zoology> A peculiar insectivore (Ptilocercus Lowii) of Borneo; so called from its very long, quill-shaped tail, which is scaly at the base and plumose at the tip. Source: Websters Dictionary (01 Mar 1998) |
| pentalogy | A rarely used term for a combination of five elements, such as five concurrent symptoms. Origin: penta-+ G. Logos, treatise, word (05 Mar 2000) |
| pentalogy of Cantrell | A type of sternal anomaly associated with midline abdominal defects, a pericardial defect, a cardiac anomaly, and ectopia cordis. (05 Mar 2000) |
| pentalogy of Fallot | Fallot's tetralogy with, in addition, a patent foramen ovale or atrial septal defect. (05 Mar 2000) |
| pentamer | See: virion. Origin: penta-+ G. Meros, part (05 Mar 2000) |
| pentamera | <zoology> An extensive division of Coleoptera, including those that normally have five-jointed tarsi. It embraces about half of all the known species of the Coleoptera. Origin: NL. See Pentamerous. Source: Websters Dictionary (01 Mar 1998) |
| pentameran | <zoology> One of the Pentamera. Source: Websters Dictionary (01 Mar 1998) |
| pentamerous | Of a flower, having five parts in each floral whorl (not necessarily including the gynoecium). (09 Oct 1997) |
| pentamerus | <paleontology> A genus of extinct Paleozoic brachiopods, often very abundant in the Upper Silurian. <geology> Pentamerus limestone, a Silurian limestone composed largely of the shells of Pentamerus. Origin: NL. See Pentamerous. Source: Websters Dictionary (01 Mar 1998) |
| pentamethonium bromide | Pentamethylene-bis[trimethylammonium bromide];a ganglionic blocking agent with the same antihypertensive use as hexamethonium chloride. (05 Mar 2000) |