5. Impression; stamp; character impressed.

All saws of books, all forms, all pressures past.

Shak.

6. (Mech.) The action of a force against some obstacle or opposing

force; a force in the nature of a thrust, distributed over a surface,

often estimated with reference to the amount upon a unit's area.

Atmospheric pressure, Center of pressure, etc. See under Atmospheric,

Center, etc. -- Back pressure (Steam engine), pressure which resists

the motion of the piston, as the pressure of exhaust steam which does

not find free outlet. -- Fluid pressure, pressure like that exerted by

a fluid. It is a thrust which is normal and equally intense in all

directions around a point. Rankine. -- Pressure gauge, a gauge for

indicating fluid pressure; a manometer.

Press"work` (?), n. The art of printing from the surface of type,

plates, or engravings in relief, by means of a press; the work so done.

MacKellar.

Prest (prst), imp. & p. p. of Press.

Prest, a. [OF. prest, F. prÍt, fr. L. praestus ready. Cf. Presto.] 1.

Ready; prompt; prepared. [Obs.]

All prest to such battle he was.

R. of Gloucester.

The Gutenberg Webster's Unabridged Dictionary: Section P and Q · 第 1401 / 2103 题