noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   A solid, made up of two hemispheres connected by a cylinder.
2. 2
   A lens of this form.

Synonyms

All synonyms

capsulecapsule

Etymology

From sphero- + cylinder.

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