\Vat\, n. [A dialectic form for fat, OE. fat, AS. f[ae]t;
akin to D. vat, OS. fat, G. fass, OHG. faz, Icel. & Sw. fat,
Dan. fad, Lith. p?das a pot, and probably to G. fassen to
seize, to contain, OHG. fazz?n, D. vatten. Cf. {Fat} a vat.]
1. A large vessel, cistern, or tub, especially one used for
   holding in an immature state, chemical preparations for
   dyeing, or for tanning, or for tanning leather, or the
   like.
         Let him produce his vase and tubs, in opposition to
         heaps of arms and standards.          --Addison.
2. A measure for liquids, and also a dry measure; especially,
   a liquid measure in Belgium and Holland, corresponding to
   the hectoliter of the metric system, which contains 22.01
   imperial gallons, or 26.4 standard gallons in the United
   States.
Note: The old Dutch grain vat averaged 0.762 Winchester
      bushel. The old London coal vat contained 9 bushels.
      The solid-measurement vat of Amsterdam contains 40
      cubic feet; the wine vat, 241.57 imperial gallons, and
      the vat for olive oil, 225.45 imperial gallons.
3. (Metal.)
   (a) A wooden tub for washing ores and mineral substances
       in.
   (b) A square, hollow place on the back of a calcining
       furnace, where tin ore is laid to dry.
4. (R. C. Ch.) A vessel for holding holy water.

\Vat\, v. t. [imp. & p. p. {Vatted}; p. pr. & vb. n.
{Vatting}.]
To put or transfer into a vat.