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To separate, as substances in combination; to release from combination or union. [R.] Daniel.

of carbon, part of which is united with a part of the iron, as a carbide, and the rest is uncombined, as graphite. It there is little free carbon, the product is white iron; if much of the carbon has separated as graphite, it is called gray iron. See also Cast iron, in the Vocabulary. -- Fire irons. See under Fire, n.…

d or produced. Nascent state (Chem.), the supposed instantaneous or momentary state of an uncombined atom or radical just separated from one compound acid, and not yet united with another, -- a hypothetical condition implying peculiarly active chemical properties; as, hydrogen in the nascent state is a strong reducer.…

Found in nature uncombined with other elements; as, native silver.

The native form of a metal, whether free and uncombined, as gold, copper, etc., or combined, as iron, lead, etc. Usually the ores contain the metals combined with oxygen, sulphur, arsenic, etc. (called mineralizers).

Single; not complex; not infolded or entangled; uncombined; not compounded; not blended with something else; not complicated; as, a simple substance; a simple idea; a simple sound; a simple machine; a simple problem; simple tasks.