Nearby Words

semidiameter

[sem-ee-dahy-am-i-ter, sem-ahy-]

sem·i·di·am·e·ter

[sem-ee-dahy-am-i-ter, sem-ahy-]
noun
half of a diameter; radius.

Origin:
1545–55; semi- + diameter
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Semidiameter has a plethora of syllables.
So is dichlorodiphenyltrichloroethane. Does it mean:
(used as a nonsense word by children to express approval or to represent the longest word in English.)
a white, crystalline, water-insoluble solid, C14H9Cl5, usually derived from chloral by reaction with chlorobenzene in the presence of fuming sulfuric acid: used as an insecticide and as a scabicide and pediculicide: agricultural use prohibited in the U.S.
WordNet
semidiameter

noun
the apparent radius of a celestial body when viewed as a disc from the earth 
WordNet® 3.0, © 2006 by Princeton University.
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