Definify.com
Webster 1913 Edition
Piston
Pis′ton
,Noun.
[F.
piston
; cf. It. pistone
piston, also pestone
a large pestle; all fr. L. pinsere
, pistum
, to pound, to stamp. See Pestle
, Pistil
.] (Mach.)
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.
Webster 1828 Edition
Piston
PIS'TON
,Noun.
A short cylinder of metal or other solid substance, used in pumps and other engines or machines for various purposes. It is fitted exactly to the bore of another body so as to prevent the entrance or escape of air, and is usually applied to the purpose of forcing some fluid into or out of the canal or tube which it fills, as in pumps, fire-engines and the like.
1.
An artificial cavity made in the earth by digging; a deep hole in the earth.2.
A deep place; an abyss; profundity. Into what pit thou seest
From what height fallen.
3.
The grave. Ps.28 and 30.4.
The area for cock-fighting; whence the phrase, to fly the pit.5.
The middle part of a theater.6.
The hollow of the body at the stomach. We say, the pit of the stomach.7.
The cavity under the shoulder; as the arm-pit.8.
A dint made by impression on a soft substance, as by the finger, &c.9.
A little hollow in the flesh, made by a pustule, as in the small picks. 10. A hollow place in the earth excavated for catching wild beasts; hence in Scripture, whatever ensnares and brings into calamity or misery, from which it is difficult to escape. Ps.7. Prov.22. and 23.
11. Great distress and misery, temporal, spiritual or eternal. Is.38. Ps.40.
12. Hell; as the bottomless pit. Rev.20.
Definition 2024
Piston
piston
piston
English
A simplified animation of a piston reciprocating.
Noun
piston (plural pistons)
- A solid disk or cylinder that fits inside a hollow cylinder, and moves under pressure (as in an engine) or displaces fluid (as in a pump)
- (music) A valve device in some brass instruments for changing the pitch
Translations
solid disk or cylinder that fits inside a hollow cylinder
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valve of brass instruments
Derived terms
Verb
piston (third-person singular simple present pistons, present participle pistoning, simple past and past participle pistoned)
- (intransitive) To move up and down like a piston.
Anagrams
French
Etymology
Pronunciation
- IPA(key): /pistɔ̃/
Noun
piston m (plural pistons)
- piston
- (colloquial) contact, connection
- Pour trouver un boulot par ici, il faut avoir des pistons. To get a job round here you need connections.
Derived terms
Anagrams
Romanian
Etymology
Noun
piston n (plural pistoane)
Declension
declension of piston
| singular | plural | |||
|---|---|---|---|---|
| indefinite articulation | definite articulation | indefinite articulation | definite articulation | |
| nominative/accusative | (un) piston | pistonul | (niște) pistoane | pistoanele |
| genitive/dative | (unui) piston | pistonului | (unor) pistoane | pistoanelor |
| vocative | pistonule | pistoanelor | ||