(n) a mixture of clays and chemicals and water; pumped down the drill pipe to lubricate and cool the drilling bit and to flush out the cuttings and to strengthen the sides of the hole, Syn.drilling mud, drilling fluid
(n) a series of tubes (joined by screwed collars) that connect a drilling platform to the drilling bit; rotates the bit and supplies drilling mud, Syn.drilling pipe
(n) drilling rig consisting of an offshore platform (floating or fixed to the sea bed) from which many oil wells can be bored radially, Syn.offshore rig, drilling platform
n. [ G. drillich, fr. L. trilix having three threads, fr. the of tres three + licium a thread of the warm. See Three, and cf. Twill. ] (Manuf.) A heavy, twilled fabric of linen or cotton. [ 1913 Webster ]
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