| Ta | tantalum; tarsal |
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| tantalum bronchography | Historically, bronchography using insufflated metallic tantalum powder. (05 Mar 2000) |
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| bronchography | Radiography of the bronchial tree after injection of a contrast medium. (12 Dec 1998) |
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| tantalum | <chemistry> A rare nonmetallic element found in certain minerals, as tantalite, samarskite, and fergusonite, and isolated as a dark powder which becomes steel-gray by burnishing. Symbol Ta. Atomic weight 182.0. Formerly called also tantalium. Origin: NL. So named on account of the perplexity and difficulty encounterd by its discoverer (Ekeberg) in isolating it. See Tantalus. Source: Websters Dictionary (01 Mar 1998) |
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