(Gr. polus; and zoon, animal). A division of the Molluscoida, comprising compound animals, such as the Sea-mat. Sometimes called Bryozoa.
Of the texture of porcelain.
(Lat. porus, a pore ; and fero, I carry). Sometimes used to designate the Foraminifera, or the Sponges.
Situated behind the anus.
Situated behind the gullet.
Situated behind the mouth.
(Lat. pros, before; molares, the grinders). The molar teeth of Mammals which succeed the molars of the milk-set of teeth. In man, the bicuspid teeth.
Situated in front of the gullet.
The anterior portion of the breast-bone, corresponding with the manubrium sterni of human anatomy, and extending as far as the point of articulation of the second rib.
(Lat. pressus, compressed; rostrum, beak). A group of the Grallatorial Birds.
(Lat. proboscis, the snout). The order of Mammals comprising the Elephants.
(Lat. or Gr. the snout). Applied to the spiral trunk of Lepidop-terous Insects, to the projecting mouth of certain Crinoids, and to the central polypite in the Medtusoe.
(Gr. pro, before; koilos, hollow). Applied to vertebrae, the bodies of which are hollow or concave in front.
(Gr. for the tip of the tongue). The generative segment or joint of a Tape-worm.
The false abdominal feet of Caterpillars.
(Lat. pronus, lying on the face, prone). The act of turning the palm of the hand downwards.
(Gr. pro, before; pous, foot). The anterior part of the foot in Molluscs.
(Gr. pro, before; scolex, worm). The first embryonic stage of a Tape-worm.
(Gr. proson, in advance of; bragchia, a gill). A division of Gasteropodous Molluscs in which the gills are situated in advance of the heart.
(Gr. pro, before ; soma, body). The anterior part of the body.
(Gr. pro; and thorax, chest). The anterior ring of the thorax of insects.
(Gr. protos, first; and phuton, plant). The lowest division of plants.