[f. as prec. + -ING2.] That compresses.
1660. Boyle, New Exp. Phys. Mech., xiii. 85. The Vessel … made … less full of compressing matter.
1713. Derham, Phys.-Theol., 5, foot-n. One of Mr. Hawkesbee’s Compressing Engines.
1860. Tyndall, Glac., II. App. 432. A compressing force acting at right angles to the planes of cleavage.
1874. Knight, Dict. Mech., I. 31/2. The air-compressing engine of Sommeilleur … worked the rock-drills.
