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twaddell |
1 definition found From Webster's Revised Unabridged Dictionary (1913) [web1913]: Twaddell \Twad"dell\, n., Twaddell's hydrometer \Twad"dell's hy*drom"e*ter\ [After one Twaddell, its inventor.] A form of hydrometer for liquids heavier than water, graduated with an arbitrary scale such that the readings when multiplied by .005 and added to unity give the specific gravity.