TREE n.
species of ducks belonging to Dendrocygna and allied genera. These ducks have a long and slender neck and a long hind toe. They are arboreal in their habits, and are found in the tropical parts of America, Africa, Asia, and Australia. -- Tree fern (Bot.), an arborescent fern having a straight trunk, sometimes twenty o…
TRICHINA n.
A small, slender nematoid worm (Trichina spiralis) which, in the larval state, is parasitic, often in immense numbers, in the voluntary muscles of man, the hog, and many other animals. When insufficiently cooked meat containing the larvæ is swallowed by man, they are liberated and rapidly become adult, pair, and the ov…
URANIUM n.
An element of the chromium group, found in certain rare minerals, as pitchblende, uranite, etc., and reduced as a heavy, hard, nickel-white metal which is quite permanent. Its yellow oxide is used to impart to glass a delicate greenish-yellow tint which is accompanied by a strong fluorescence, and its black oxide is us…
USURY n.
tipulated to be paid, for a loan, as of money; interest. [Obs. or Archaic] Thou shalt not lend upon usury to thy brother; usury of money, usury of victuals, usury of anything that is lent upon usury. Deut. xxiii. 19. Thou oughtest therefore to have put my money to the exchanges, and then at my coming I should have rece…