[ex.haust] vb [L exhaustus, pp. of exhaurire, fr. ex- + haurire to draw; akin to MHG oesen to empty, Gk auein to take] vt (1533) 1 a: to consume entirely: use up "~ed our funds in a week" b: to tire extremely or completely "~ed by overwork" c: to deprive of a valuable quality or constituent "~ a photographic developer" "~ a soil of fertility"
2. a: to draw off or let out completely b: to empty by drawing off the contents; specif: to create a vacuum in 3 a: to develop (a subject) completely b: to try out the whole number of "~ed all the possibilities" ~ vi: discharge, empty "the engine ~s through the muffler" syn see deplete, tire -- ex.haust.er n -- ex.haust.ibil.i.ty n -- ex.haust.ible adj
[2]exhaust n (1848) 1 a: the escape of used gas or vapor from an engine b: the gas or vapor thus escaping
2. a: the conduit through which used gases escape b: an arrangement for removing fumes, dusts, or odors from an enclosure
3: exhaustion