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(C4H5N3O4) not known in the free state, but obtained, in combination with its salts, by a slow oxidation of uric acid, to which it is related.

To travel heavily or slowly. Bunyan.

Chaucer. On high behests his angels to and fro Passed frequent. Milton. Sweet sounds rose slowly through their mouths, And from their bodies passed. Coleridge.

An old Italian or Spanish dance tune, in slow three-four measure, with divisions on a ground bass, resembling a chaconne.

d colorless rock crystal; as, Brazilian pebble; -- so called by opticians. Pebble powder, slow-burning gunpowder, in large cubical grains. -- Scotch pebble, varieties of quartz, as agate, chalcedony, etc., obtained from cavities in amygdaloid.

Of or pertaining to a pellicle. Henslow.

Shieldlike, with the outline nearly circular; peltate. Henslow.

rm.), the process of exhausting the virtues of a powdered drug by letting a liquid filter slowly through it.

vals; recurring; as, periodical epidemics. The periodic return of a plant's flowering. Henslow. To influence opinion through the periodical press. Courthope.

in certain fungi and lichens, surrounding and enveloping the masses of fructification. Henslow.

rtain fungi which are covered with a woolly substance which at length becomes powdery. Henslow.

ession of flashes the wheel is made to appear to be motionless, or to rotate more or less slowly in either direction.

To eat slowly, sparingly, or by morsels; to nibble. Why stand'st thou picking Is thy palate sore Dryden.

To travel slowly but steadily; to trudge. Shak.

Progressing in a slow, toilsome manner; characterized by laborious diligence; as, a plodding peddler; a plodding student; a man of plodding habits. --Plod"ding*ly, adv.

ndicating the time or movement; as, poco più allegro, a little faster; poco largo, rather slow. Poco a poco Etym: [It.] (Mus.) Little by little; as, poco a poco crescendo, gradually increasing in loudness.

Having a small, distinct point; apiculate. Henslow.

A politician. [Archaic] Bacon. Swiftly the politic goes; is it dark he borrows a lantern; Slowly the statesman and sure, guiding his feet by the stars. Lowell.

, however, not being jointed to the petiole, are not true leaflets; -- said of leaves. Henslow.

Any aquatic plant of the genus Potamogeton, of which many species are found in ponds or slow-moving rivers. Choke pondweed, an American water weed (Anarcharis, or Elodea, Canadensis.) See Anacharis. -- Horned pondweed, the Zannichellia palustris, a slender, branching aquatic plant, having pointed nutlets.…