withdraw; separate.-considered apart from any application to a particular object; separated from matter; existing in the mind only; as, abstract truth, abstract numbers.  hence: ideal; abstruse; difficult.-expressing a particular property of an object viewed apart from the other properties which constitute it; -- opposed to concrete; as, honesty is an abstract word.-resulting from the mental faculty of abstraction; general as opposed to particular; as, "reptile" is an abstract or general name.-abstracted; absent in mind.-to withdraw; to separate; to take away.-to draw off in respect to interest or attention; as, his was wholly abstracted by other objects.-to separate, as ideas, by the operation of the mind; to consider by itself; to contemplate separately, as a quality or attribute.-to epitomize; to abridge.-to take secretly or dishonestly; to purloin; as, to abstract goods from a parcel, or money from a till.-to separate, as the more volatile or soluble parts of a substance, by distillation or other chemical processes. in this sense extract is now more generally used.-to perform the process of abstraction.-that which comprises or concentrates in itself the essential qualities of a larger thing or of several things. specifically: a summary or an epitome, as of a treatise or book, or of a statement; a brief.-a state of separation from other things; as, to consider a subject in the abstract, or apart from other associated things.-an abstract term.-a powdered solid extract of a vegetable substance mixed with sugar of milk in such proportion that one part of the abstract represents two parts of the original substance.