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mes or violent effervescence. -- Safety valve, a valve which is held shut by a spring or weight and opens automatically to permit the escape of steam, or confined gas, water, etc., from a boiler, or other vessel, when the pressure becomes too great for safety; also, sometimes, a similar valve opening inward to admit a…

To sink, in the middle, by its weight or under applied pressure, below a horizontal line or plane; as, a line or cable supported by its ends sags, though tightly drawn; the floor of a room sags; hence, to lean, give way, or settle from a vertical position; as, a building may sag one way or another; a door sags on its h…

bending or sinking between the ends of a thing, in consequence of its own, or an imposed, weight; an arching downward in the middle, as of a ship after straining. Cf. Hogging.

A large bale or package of wool, containing eighty tods, or 2,240 pounds, in weight. [Eng.]

The dish of a balance; hence, the balance itself; an instrument or machine for weighing; as, to turn the scale; -- chiefly used in the plural when applied to the whole instrument or apparatus for weighing. Also used figuratively. Long time in even scale The battle hung. Milton. The scales are turned; her kindness weigh…

The lever or beam of a balance; the lever of a platform scale, to which the poise for weighing is applied.

avian minerals (euxenite and gadolinite). It has not yet been isolated. Symbol Sc. Atomic weight 44

A weight of twenty pounds. [Prov. Eng.]

A weight of twenty grains; the third part of a dram.

of the genus Manta or Cepholoptera, some of which become more than twenty feet across and weigh several tons. See also Ox ray, under Ox.

p, as an evidence of standard exactness, legal size, or merchantable quality; as, to seal weights and measures; to seal silverware.

who seals; especially, an officer whose duty it is to seal writs or instruments, to stamp weights and measures, or the like.

A denomination of weight or measure. Specifically:

on in electric conductivity, and is used in certain electric apparatus. Symbol Se. Atomic weight 78.9.

e's own action or character by one's own judgment. One self-approving hour whole years outweighs Of stupid starers and of loud huzzas. Pope.

Important; weighty; not trifling; grave. The holy Scriptures bring to our ears the most serious things in the world. Young.

piece placed temporarily upon the head of a pile when the latter cannot be reached by the weight, or hammer, except by means of such an intervening piece. [Often incorrectly written sett.] (f) (Carp.)

An apparatus for raising heavy weights, and especially for stepping and unstepping the lower masts of ships. It consists of two or more spars or pieces of timber, fastened together near the top, steadied by a guy or guys, and furnished with the necessary tackle. [Written also sheers.]

or Diplodus, probatocephalus) found on the Atlantic coast of the United States. It often weighs from ten to twelve pounds.

An ancient weight and coin used by the Jews and by other nations of the same stock.