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pillary and parallel, giving it a fibrous structure. It is supposed to be produced by the disengagement of watery vapor without liquid or plastic lava. It is much used, esp. in the form of powder, for smoothing and polishing. Called also pumice stone.

To be disengaged from the ear or husk; as, wheat or rye shells in reaping.

A black substance formed by combustion, or disengaged from fuel in the process of combustion, which rises in fine particles, and adheres to the sides of the chimney or pipe conveying the smoke; strictly, the fine powder, consisting chiefly of carbon, which colors smoke, and which is the result of imperfect combustion.…

knot of threads, or other thing, united confusedly, or so interwoven as not to be easily disengaged; a snarl; as, hair or yarn in tangles; a tangle of vines and briers. Used also figuratively.

ther loop or bight or ring; a kind of button or frog capable of being readily engaged and disengaged for temporary purposes.

To disengage, as a clutch.

To disentangle; to disengage or separate the threads of; as, to unravel a stocking.

To loosen, as something interlaced or knotted; to disengage the parts of; as, to untie a knot. Sacharissa's captive fain Would untie his iron chain. Waller. Her snakes untied, sulphurous waters drink. Pope.

Unengaged with business or care; unemployed; unoccupied; disengaged; free; as, vacant hours. Religion is the interest of all; but philosophy of those . . . at leisure, and vacant from the affairs of the world. Dr. H. More. There was not a minute of the day which he left vacant. Bp. Fell.