D defs.my
Entry 1 sense Webster, 1913

Twaddell

/twäd-ĕl'/ · Twad·dell · IPA /twɑdˈɛl/
01 n. A form of hydrometer for liquids heavier than water, graduated with an arbitrary scale such that the readings when multiplied by .005 and a…
  1. 1.
    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.