Similar words: raining, training, retraining, constraining, basic training, gaining, brain drain, obtaining. Meaning: [dreɪn] 
adj. having a debilitating effect.
adj. having a debilitating effect. (151) Waste draining pipe, offlet or drain pipe should be connected to the main pipe; each pipe should connect two valves with the most possible short valve-to-valve pipe length.
More similar words: raining, training, retraining, constraining, basic training, gaining, brain drain, obtaining, retaining, remaining, sustaining, complaining, bargaining, entertaining, plea bargaining, collective bargaining, drain, drained, drainage, acid rain, down the drain, brainiac, go down the drain, pain in the neck, pining, dining, mining, joining, ruining, whining.