Excrescence(n.) An excrescent appendage, as, a wart or tumor; anything growing out unnaturally from anything else; a preternatural or morbid development; hence, a troublesome superfluity; an incumbrance; as, an excrescence on the body, or on a plant.
Excrescency(n.) Excrescence.
Excrescent(a.) Growing out in an abnormal or morbid manner or as a superfluity.

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