Part 930

Sub*strac"tion (?), n. [OF. substraction, F. soustraction. See Subtract.] 1. Subtraction; deduction. [Obs.]

2. (Law) See Subtraction, 3.

Sub*stract"or (?), n. 1. One who subtracts.

2. A detractor; a slanderer. [Obs.] Shak.

Sub"strate (?), n. A substratum. [R.]

Sub"strate, a. Having very slight furrows. [R.]

Sub*strate" (?), v. t. [L. substratus, p. p. of substrahere. See Substratum.] To strew or lay under anything. [Obs.]

The melted glass being supported by the substrated sand.

Boyle.

Sub*stra"tum (?), n.; pl. Substrata (#). [L. substratus, p. p. of substernere to strew under; sub under + sternere to strew. See Stratum.] 1. That which is laid or spread under; that which underlies something, as a layer of earth lying under another; specifically (Agric.), the subsoil.

2. (Metaph.) The permanent subject of qualities or cause of phenomena; substance.

Sub*struct" (?), v. t. [See Substruction.] To build beneath something; to lay as the foundation. [R.]

He substructs the religion of Asia as the base.

Emerson.

Sub*struc"tion (?), n. [L. substructio, fr. substruere, substructum, to build beneath; sub under + struere to build.] (Arch.) Underbuilding; the foundation, or any preliminary structure intended to raise the lower floor or basement of a building above the natural level of the ground.

It is a magnificent strong building, with a substruction very remarkable.

Evelyn.

Sub*struc"ture (?), n. [Pref. sub- + structure.] 1. (Arch.) Same as Substruction.

2. An under structure; a foundation; groundwork.

Sub*sty"lar (?), a. Pertaining to the substyle.

Sub"style` (?), n. (Dialing) A right line on which the style, or gnomon, of a dial is erected; being the common section of the face of the dial and a plane perpendicular to it passing through the style. [Written also substile.] Hutton.

Sub*sul"phate (?), n. (Chem.) A sulphate with an excess of the base.

Sub*sul"phide (?), n. (Chem.) A nonacid compound consisting of one equivalent of sulphur and more than one equivalent of some other body, as a metal.

Sub*sul"tive (?), a. Subsultory. [R.] Berkley.

Sub*sul"to*ry (?), a. [L. subsilire, subsultum, to spring up; sub under + salire to leap.] Bounding; leaping; moving by sudden leaps or starts. [R.] -- Sub*sul"to*ri*ly, adv. [R.]

Flippancy opposed to solemnity, the subsultory to the continuous, -- these are the two frequent extremities to which the French manner betrays men.

De Quincey.

||Sub*sul"tus (?), n. [NL. See Subsultory.] (Med.) A starting, ||twitching, or convulsive motion.