[ hem-i-sik-lee-uh m ]
/ ˌhɛm ɪˈsɪk li əm /
a sundial in the form of a concave quarter sphere having a rodlike gnomon lying within one radius and marked on its surface with arcs that lie in the same plane as the gnomon.
Origin of hemicyclium
From Latin; see origin at hemicycle
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019