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A coherent mass of pollen, as in the milkweed and most orchids.

A polysulphide. [Obsoles.]

ny one of numerous species of American fresh-water fishes belonging to the family Centrarchidæ; -- called also pond perch, and sunfish.

orcupine (Erethizon dorsatus) is a well known species. Porcupine ant-eater (Zoöl.), the echidna. -- Porcupine crab (Zoöl.), a large spiny Japanese crab (Acantholithodes hystrix). -- Porcupine disease (Med.). See Ichthyosis. -- Porcupine fish (Zoöl.), any plectognath fish having the body covered with spines which bec…

Molybdenum sulphide.

5. Many things which are most precious are neglected only because the value of them lieth hid. Hooker.

ut forward, as a cloak or disguise for something else; to exhibit as a veil for something hidden. [R.] Lest that too heavenly form, pretended To hellish falsehood, snare them. Milton.

y treating salt with sulphuric acid, reducing the sodium sulphate so formed to sodium sulphide by roasting with charcoal, and converting the sodium sulphide to sodium carbonate by roasting with lime. -- Mesne process. See under Mesne. -- Process milling, the process of high milling for grinding flour. See under Milli…

rance; well formed; handsome. [Archaic] "Thou art a proper man." Chaucer. Moses . . . was hid three months of his parents, because they saw he was a proper child. Heb. xi. 23.

A protosulphide. [Obs.]

A sulphide of arsenic and silver of a beautiful cochineal-red color, occurring in rhombohedral crystals, and also massive; ruby silver.

An aërial corm, or thickened stem, as of some epiphytic orchidaceous plants.

Any small moth of the genus Psyche and allied genera (family Psychidæ). The larvæ are called basket worms. See Basket worm, under Basket.

Imperial; regal; -- so called from the color having been an emblem of imperial authority. Hide in the dust thy purple pride. Shelley.

Disguise; covering. [Obs.] For she her sex under that strange purport Did use to hide. Spenser.

An American orchidaceous plant (Aplectrum hyemale) which flowers in early summer. Its slender naked rootstock produces each year a solid corm, filled with exceedingly glutinous matter, which sends up later a single large oval evergreen plaited leaf. Called also Adam-and-Eve.

Ruby silver; dark red silver ore. It is a sulphide of antimony and silver, occurring in rhombohedral crystals or massive, and is of a dark red or black color with a metallic adamantine luster.

rilliant metallic luster, crystallizing in the isometric system; iron pyrites; iron disulphide. Hence sable coal his massy couch extends, And stars of gold the sparkling pyrite blends. E. Darwin.

A name given to a number of metallic minerals, sulphides of iron, copper, cobalt, nickel, and tin, of a white or yellowish color.

A bronze-colored mineral, of metallic luster. It is a sulphide of iron, and is remarkable for being attracted by the magnet. Called also magnetic pyrites.