What does "tuza" mean?

Tuza: The tucan. TWADDELL; TWADDELL'S HYDROMETER Twad"dell, n., 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.

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