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A European sting ray of the genus Trygon (T. pastinaca); -- called also fireflare and fiery flaw.

Bygone. [Obs.] Shak.

pal entrance. -- Front of fortification, the works constructed upon any one side of a polygon. Farrow. -- Front of operations, all that part of the field of operations in front of the successive positions occupied by the army as it moves forward. Farrow. -- To come to the front, to attain prominence or leadership.…

pended from the cord at points between the fixed support and the pulley. -- Funicular polygon (Mech.), the polygonal figure assumed by a cord fastened at its extremities, and sustaining weights at different points.

p. the similar sex cells of the lower thallophytes which unite by conjugation, forming a zygospore. The gametes of higher plants are of two sorts, sperm (male) and egg (female); their union is called fertilization, and the resulting zygote an oöspore. In Zoöl., gamete is most commonly used of the sexual cells of certai…

rite food of geese; -- called also catchweed and cleavers. (b) A species of knotgrass (Polygonum aviculare). (c) The annual spear grass (Poa annua). -- Goose neck, anything, as a rod of iron or a pipe, curved like the neck of a goose; specially (Naut.), an iron hook connecting a spar with a mast. -- Goose quill, a la…

t which is homologous to something else; as, the corresponding sides, etc., of similar polygons are the homologues of each other; the members or terms of an homologous series in chemistry are the homologues of each other; one of the bones in the hand of man is the homologue of that in the paddle of a whale.…

The quality of being homologous; correspondence; relation; as, the homologyof similar polygons.

A species (Polygonum Hydropiper) of knotweed with acrid foliage; water pepper; smartweed.

angle (Geom.), an angle formed between two sides, within any rectilinear figure, as a polygon, or between two parallel lines by these lines and another intersecting them; -- called also internal angle. -- Interior planets (Astron.), those planets within the orbit of the earth. -- Interior screw, a screw cut on an in…

A figure or polygon whose angles are equal.

A zygospore.

A slender, nearly leafless, American herb (Polygonum articulatum), with jointed spikes of small flowers.

a common weed with jointed stems (Polygonum aviculare); knotweed.

The European Solomon's seal (Polygonatum verticillatum).

An annual weed (Polygonum Persicaria), having a lanceolate leaf with a dark spot in the middle.

The water pepper (Polygonum Hydropiper), an aquatic plant of Europe and North America.

The peculiar larva of Polygordius. See Polygordius.

o, the parasites develop into gametes in the stomach of the insect. These conjugate, the zygote thus produced divides, forming spores, and eventually sporozoites, which, penetrating to the salivary glands of the mosquito, may be introduced into a new host. The attacks of the disease coincide with the dissolution of the…

A genus of trees of Southern India and Northern Africa. One species (Moringa pterygosperma) is the horse-radish tree, and its seeds, as well as those of M. aptera, are known in commerce as ben or ben nuts, and yield the oil called oil of ben.