pistons
plural of piston
• instops, posnits, postins
Source: Wiktionary
Pis"ton, n. Etym: [F. piston; cf. It. pistone piston, also pestone a large pestle; all fr. L. pinsere, pistum, to pound, to stamp. See Pestle, Pistil.] (Mach.)
Definition: A sliding piece which either is moved by, or moves against, fluid pressure. It usually consists of a short cylinder fitting within a cylindrical vessel along which it moves, back and forth. It is used in steam engines to receive motion from the steam, and in pumps to transmit motion to a fluid; also for other purposes. Piston head (Steam Eng.), that part of a piston which is made fast to the piston rod.
– Piston rod, a rod by which a piston is moved, or by which it communicates motion.
– Piston valve (Steam Eng.), a slide valve, consisting of a piston, or connected pistons, working in a cylindrical case which is provided with ports that are traversed by the valve.
Source: Webster’s Unabridged Dictionary 1913 Edition
24 May 2025
(adjective) sufficiently significant to affect the whole world; “earthshaking proposals”; “the contest was no world-shaking affair”; “the conversation...could hardly be called world-shattering”
International Coffee Day (September 29) is an occasion to promote and celebrate coffee as a beverage, with events occurring in places across the world. A day to promote fair trade coffee and raise awareness for the coffee growers’ plight. Other countries celebrate this event on October 1.
