noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   A benign structure similar to the nodule of a lymphoma.
2. 2
   A space on a diatom valve devoid of markings, resembling a nodule, but not thickened.

Etymology

From pseudo- + nodule.

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