semidiameter
[sem-ee-dahy-am-i-ter, sem-ahy-]
/ ˌsɛm i daɪˈæm ɪ tər, ˌsɛm aɪ- /
NOUN
radius
Synonyms
From Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.