Excrescency

Full definition of excrescency

(plural excrescencies)

An excrescent state or condition; the quality or fact of growing out of something; abnormal or excessive development; an example of this.
(obsolete) An exuberant outburst; an extravagance.
(obsolete) An excrescence; something excrescent; an outgrowth.
(obsolete) An abnormal, morbid, or unsightly outgrowth.