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alpable; that cannot be felt; extremely fine, so that no grit can be perceived by touch. "Impalpable powder." Boyle.

An impalpable powder. [Obs.]

The act of reducing a substance to a fine or impalpable powder. [Obs.] Johnson.

A highly refined sugar in impalpable powder, esp. suited to confectioners' uses.

The quality of being impalpable. Jortin.

In an impalpable manner.

Not tangible; incapable of being touched; not perceptible to the touch; impalpable; imperceptible. Bp. Wilkins. A corporation is an artificial, invisible, intangible being. Marshall. -- In*tan"gi*ble*ness, n. -- In*tan"gi*bly, adv.

A very pure white clay, ordinarily in the form of an impalpable powder, and used to form the paste of porcelain; China clay; porcelain clay. It is chiefly derived from the decomposition of common feldspar.

The fine impalpable soot obtained from the smoke of carbonaceous substances which have been only partly burnt, as in the flame of a smoking lamp. It consists of finely divided carbon, with sometimes a very small proportion of various impurities. It is used as an ingredient of printers' ink, and various black pigments a…

To free from grit; to reduce to an impalpable powder or paste.

he organic acids. -- Mineral blue, the name usually given to azurite, when reduced to an impalpable powder for coloring purposes. -- Mineral candle, a candle made of paraffine. -- Mineral caoutchouc, an elastic mineral pitch, a variety of bitumen, resembling caoutchouc in elasticity and softness. See Caoutchouc, and…

the head of a jib-headed sail. -- Spanish sheep (Zoöl.), a merino. -- Spanish white, an impalpable powder prepared from chalk by pulverizing and repeated washings, -- used as a white pigment. -- Spanish windlass (Naut.), a wooden roller, with a rope wound about it, into which a marline spike is thrust to serve as a…

To rub or grind to a very fine or impalpable powder; to pulverize and comminute thoroughly.

The act of triturating, or reducing to a fine or impalpable powder by grinding, rubbing, bruising, etc. Paley.

Chalk prepared in an impalpable powder by pulverizing and repeated washing, used as a pigment, as an ingredient in putty, for cleaning silver, etc. Whiting pollack. (Zoöl.) Same as Pollack. -- Whiting pout (Zoöl.), the bib, 2.