'Semicircular' definitions:

Definition of 'semicircular'

From: WordNet
adjective
Curved into a half circle

Definition of 'Semicircular'

From: GCIDE
  • Semicircular \Sem`i*cir"cu*lar\, a. Having the form of half of a circle. --Addison. [1913 Webster]
  • Semicircular canals (Anat.), certain canals of the inner ear. See under Ear. [1913 Webster]

Definition of 'semicircular'

From: GCIDE
  • curved \curved\ adj.
  • 1. not straight; having or marked by curves. Opposite of straight.
  • Note: [Narrower terms: {arced, arched, arching, arciform, arcuate, bowed}; falcate, sickle-shaped; flexuous; incurvate, incurved: recurved, recurvate; semicircular: serpentine, snaky: {sinuate, sinuous, wavy}: sinusoidal]
  • Syn: curving. [WordNet 1.5]
  • 2. (Botany) curved with the micropyle near the base almost touching its stalk; -- of a plant ovule. Opposite of orthotropous.
  • Syn: campylotropous. [WordNet 1.5]

Synonyms of 'semicircular'

From: Moby Thesaurus