1. Destitute of pity; hard-hearted; merciless; as, a pitilessmaster; pitiless elements.

2. Exciting no pity; as, a pitiless condition.
— Pit"i*less*ly, adv.
— Pit"i*less*ness, n.

PITMAN
Pit"man, n.; pl. Pitmen (.

1. One who works in a pit, as in mining, in sawing timber, etc.

2. (Mach.)

Defn: The connecting rod in a sawmill; also, sometimes, a connecting rod in other machinery.

PITOT'S TUBE
Pi*tot's" tube`. (Hydraul.)

Defn: A bent tube used to determine the velocity of running water, by placing the curved end under water, and observing the height to which the fluid rises in the tube; a kind of current meter.

PITPAN
Pit"pan`, n.

Defn: A long, flat-bottomed canoe, used for the navigation of rivers and lagoons in Central America. Squier.