Ex·cres'cent adjective [ Latin excresens , -entis , present participle of excrescere to grow out ; ex out + crescere to grow. See Crescent .] Growing out in an abnormal or morbid manner or as a superfluity. « Expunge the whole, or lip the excrescen... Found on http://www.encyclo.co.uk/webster/E/84
growing abnormally out of something else; superfluous. · (of a speech sound) inserted or added as a result of articulatory interaction or impetus, as the t-sound in sense (sents) or against (from Middle English ageynes), without grammatical or historical justification; intrusive; parasitic. Found on https://www.infoplease.com/dictionary/excrescent