expansion : Idioms & Phrases

one that is regulated by the governor, and varies the supply of steam to the engine with the demand for power.

noun the fractional change in length or area or volume per unit change in temperature at a given constant pressure
expansivity.

noun a bit with a cutting blade that can be adjusted to different sizes
expansive bit.

noun a bolt that has an attachment that expands as the bolt is driven into a surface

a curve the coördinates of which show the relation between the pressure and volume of expanding gas or vapor; esp. (Steam engine), that part of an indicator diagram which shows the declining pressure of the steam as it expands in the cylinder.

(Mech. & Engin.), a yielding joint or coupling for so uniting parts of a machine or structure that expansion, as by heat, is prevented from causing injurious strains; as by heat, is prevented from causing injurious strains; as: (a) A side or set of rollers, at the end of bridge truss, to support it but allow end play. (b) A telescopic joint in a steam pipe, to permit one part of the pipe to slide within the other. (c) A clamp for holding a locomotive frame to the boiler while allowing lengthwise motion.

noun (computer) a socket in a microcomputer that will accept a plug-in circuit board
slot.
- the PC had three slots for additional memory

(Steam Engine), a cut-off valve, to shut off steam from the cylinder before the end of each stroke.

a compound steam engine in which the same steam performs work in three cylinders successively.