PACHISI; PARCHESI; PARCHISI; PARCHEESI
Pa*chi"si, n. Commonly spelt Par*che"si, Par*chi"si, Par*chee"si.

Defn: A game adopted from the Indian game, using disks, as of pasteboard, and dice. [U. S. & Eng.]

PACHISI; PARCHESI Pa*chi"si, Par*che"si, n. [Hind., fr. pachis twenty-five, the highest throw in the game.]

Defn: A game, somewhat resembling backgammon, originating in India.

PACHOMETER
Pa*chom"e*ter, n. [Gr. pa`chos thickness + -meter.] (Physics)

Defn: An instrument for measuring thickness, as of the glass of a mirror, or of paper; a pachymeter.

PACHONTA
Pa*chon"ta, n. (Bot.)

Defn: A substance resembling gutta-percha, and used to adulterate it, obtained from the East Indian tree Isonandra acuminata.

PACHUCA TANK
Pa*chu"ca tank. (Metallurgy)

Defn: A high and narrow tank, with a central cylinder for the introduction of compressed air, used in the agitation and settling of pulp (pulverized ore and water) during treatment by the cyanide process; — so named because, though originally devised in New Zealand, it was first practically introduced in Pachuca, Mexico.