PARA- n.
A prefix denoting: (a) Likeness, similarity, or connection, or that the substance resembles, but is distinct from, that to the name of which it is prefixed; as paraldehyde, paraconine, etc.; also, an isomeric modification. (b) Specifically: (Organ. Chem.) That two groups or radicals substituted in the benzene nucleus a…
PIPIT n.
g birds belonging to Anthus and allied genera, of the family Motacillidæ. They strongly resemble the true larks in habits, colors, and the great length of the hind claw. They are, therefore, often called titlarks, and pipit larks.
PLATINUM n.
(Chem.), the group of metallic elements which in their chemical and physical properties resemble platinum. These consist of the light platinum group, viz., rhodium, ruthenium, and palladium, whose specific gravities are about 12; and the heavy platinum group, viz., osmium, iridium, and platinum, whose specific gravitie…