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2017 Word of the Year

semidiameter

[sem-ee-dahy-am-i-ter, sem-ahy-] /ˌsɛm i daɪˈæm ɪ tər, ˌsɛm aɪ-/
noun
1.
half of a diameter; radius.
Origin of semidiameter
1545-1555
First recorded in 1545-55; semi- + diameter
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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