1. (p. pr. & vb. n.) of Drain.

2. (n.) The art of carrying off surplus water, as from land.

aspiration bleeding bloodletting breakdown broaching clamant clamorous cleaning out clearance clearing collapse coming apart crack-up cracking crumbling crying cupping decadent declining defecation degenerate demanding depletion deteriorating devitalizing discharging cargo disintegrating drafting drainage drawing drooping dwindling ebbing effete egress elimination emptying enervating enfeebling evacuation exacting excretion exhaustedness exhausting exhaustion exigent exorbitant extortionate fading failing falling fatiguesome fatiguing flagging fragmenting going to pieces grasping grueling importunate insistent instant killing languishing loud marcescent milking nervous exhaustion nervous prostration off-loading persistent pertinacious phlebotomy pining pipetting pressing prostration pumping punishing regressive removal retrograde retrogressive sapping shriveling sinking siphoning sliding slipping slumping straining stressful subsiding sucking suction tabetic tapping taxing tiresome tiring toilsome trying unloading urgent venesection venting voidance voiding waning wasting weakening weariful wearing wearisome wearying wilting withering worsening