Puzzle, puz′l, n. a difficulty to be solved: perplexity: something to try the ingenuity, as a toy or riddle.—v.t. to set a difficult question to: to pose: to perplex.—v.i. to be bewildered: to think long and carefully (with out, over).—ns. Puzz′ledom (coll.), bewilderment; Puzz′le-head, one who is puzzle-headed.—adj. Puzz′le-head′ed, having the head full of confused notions.—ns. Puzz′le-head′edness; Puzz′lement, the state of being puzzled; Puzz′le-monk′ey (same as Monkey-puzzle, q.v.); Puzz′le-peg, a piece of wood so secured under a dog's jaw as to keep his nose from the ground; Puzz′ler; Puzz′le-ring, a ring made of several small rings intricately linked together, capable of being taken apart and put together again.—adj. Puzz′ling, posing: perplexing.—adv. Puzz′lingly. [From M. E. opposaile (Eng. opposal), an objection—opposen, posen. Cf. Pose and Oppose.]

Puzzolana, puz-ō-lä′na, n. a loosely coherent volcanic sand found at Pozzuoli, near Naples, forming a hydraulic cement with ordinary lime.—Also Puzzolä′no, Pozzuolä′na.

Pyæmia, Pyemia, pī-ē′mi-a, n. a disease caused by the introduction into the blood of decomposing matter, from pus, &c.—adjs. Pyæ′mic, Pyē′mic. [Gr. pyon, pus, haima, blood.]

Pycnid, pik′nid, n. a special receptacle in ascomycetous fungi, resembling a perithecium, in which stylospores or pycnospores are produced—also Pycnid′ium.—n. Pyc′nospore, a stylospore. [Gr. pyknos, thick.]

Pycnite, pik′nīt, n. a columnar variety of topaz.

Pycnogonida, pik-nō-gon′i-da, n.pl. a division of marine arthropods, the sea-spiders.—adj. Pycnog′onoid. [Gr. pyknos, thick, gony, the knee.]

Pycnometer, pik-nom′e-tėr, n. an instrument for determining the specific gravity of solid bodies. [Gr. pyknos, thick, metron, measure.]

Pycnon, pik′non, n. (mus.) a small interval in Greek music, a quarter-tone: in medieval music, a semi-tone. [Gr. pyknos, thick.]

Pycnostyle, pik′nō-stīl, adj. (archit.) noting a lower degree of intercolumniation, usually 1½ diameters. [Gr. pyknos, thick, stylos, a column.]

Pyebald. See Piebald.