Defn: Resembling soup; souplike.

SOUR
Sour, a. [Compar. Sourer; superl. Sourest.] Etym: [OE. sour, sur, AS.
s; akin to D. zuur, G. sauer, OHG. s, Icel. s, Sw. sur, Dan. suur,
Lith. suras salt, Russ. surovui harsh, rough. Cf. Sorrel, the plant.]

1. Having an acid or sharp, biting taste, like vinegar, and the juices of most unripe fruits; acid; tart. All sour things, as vinegar, provoke appetite. Bacon.

2. Changed, as by keeping, so as to be acid, rancid, or musty, turned.

3. Disagreeable; unpleasant; hence; cross; crabbed; peevish; morose; as, a man of a sour temper; a sour reply. "A sour countenance." Swift. He was a scholar . . . Lofty and sour to them that loved him not, But to those men that sought him sweet as summer. Shak.

4. Afflictive; painful. "Sour adversity." Shak.

5. Cold and unproductive; as, sour land; a sour marsh. Sour dock (Bot.), sorrel. — Sour gourd (Bot.), the gourdlike fruit Adansonia Gregorii, and A. digitata; also, either of the trees bearing this fruit. See Adansonia. — Sour grapes. See under Grape. — Sour gum (Bot.) See Turelo. — Sour plum (Bot.), the edible acid fruit of an Australian tree (Owenia venosa); also, the tree itself, which furnished a hard reddish wood used by wheelwrights.

Syn. — Acid; sharp; tart; acetous; acetose; harsh; acrimonious; crabbed; currish; peevish.

SOUR
Sour, n.

Defn: A sour or acid substance; whatever produces a painful effect.
Spenser.