hourglass

¹hour·glass

noun \ˈau̇(-ə)r-ˌglas\

Definition of HOURGLASS

: an instrument for measuring time consisting of a glass vessel having two compartments from the uppermost of which a quantity of usually sand runs in an hour into the lower one

Illustration of HOURGLASS

First Known Use of HOURGLASS

circa 1515

Rhymes with HOURGLASS

admass, air mass, alas, Alsace, amass, art glass, avgas, badass, bagasse, beach grass, bear grass, bent grass, black bass, Black Mass, bluegrass, bromegrass, bunchgrass, bypass, cheatgrass, cordgrass, crabgrass, crevasse, cuirass, cut glass, cut-grass, declass, degas, drop pass, Drygas, eelgrass, en masse, eyeglass, first-class, flint glass, float glass, folk mass, ground glass, groundmass, hand glass, harass, hard-ass, haul ass, high-class, high mass, impasse, jackass, jump pass, kelp bass, kick ass, kick-ass, knotgrass, landmass, lead glass, low mass, Madras, milk glass, morass, nut grass, oat grass, outclass, outgas, palliasse, pier glass, plate glass, quartz glass, red mass, repass, rest mass, ribgrass, rock bass, ryegrass, salt grass, sandglass, saw grass, screen pass, sea bass, sheet glass, smart-ass, South Pass, spot pass, spun glass, spyglass, stained glass, star grass, striped bass, subclass, sunglass, sung mass, surpass, sweetgrass, switchgrass, sword grass, teargas, third-class, trespass, Troas, turfgrass, wheatgrass, white bass, wineglass, wire grass, wiseass, witchgrass, word class, world-class, yard grass