noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   A form of slow-growing tumour originating in the neuroendocrine system.
2. 2
   a small tumor (benign or malignant) arising from the mucosa of the gastrointestinal tract; usually associated with excessive secretion of serotonin wordnet

Etymology

From carcino- + -oid.

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.