Aplacophora :: Aplacophora (n. pl.) A division of Amphineura in which the body is naked or covered with slender spines or setae, but is without shelly plates..
Malacopterygii :: Malacopterygii (n. pl.) An order of fishes in which the fin rays, except the anterior ray of the pectoral and dorsal fins, are closely jointed, and not spiny. It includes the carp, pike, salmon, shad, etc. Called also Malacopteri..
Phacops :: Phacops (n.) A genus of trilobites found in the Silurian and Devonian formations. Phacops bufo is one of the most common species.
Pharmacopoeia :: Pharmacopoeia (n.) A book or treatise describing the drugs, preparations, etc., used in medicine; especially, one that is issued by official authority and considered as an authoritative standard..
Pharmacopolist :: Pharmacopolist (n.) One who sells medicines; an apothecary.
Placophora :: Placophora (n. pl.) A division of gastropod Mollusca, including the chitons. The back is covered by eight shelly plates. Called also Polyplacophora. See Illust. under Chiton, and Isopleura..
Thoracoplasty :: Thoracoplasty (n.) A remodeling or reshaping of the thorax; especially, the operation of removing the ribs, so as to obliterate the pleural cavity in cases of empyema..