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Table of Contents POS
HYPHEN
WORDNET DICTIONARY
CIDE DICTIONARY
OXFORD DICTIONARY

semidiameter

POS

Noun

HYPHEN

sem=i=di=am=e=ter

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WORDNET DICTIONARY

Noun semidiameter has 1 sense

semidiameter(n = noun.attribute) Array - the apparent radius of a celestial body when viewed as a disc from the earth; Array

is a kind of

radius

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CIDE DICTIONARY

semidiameter, n.

Half of a diameter; a right line, or the length of a right line, drawn from the center of a circle, a sphere, or other curved figure, to its circumference or periphery; a radius. [1913 Webster]

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OXFORD DICTIONARY

semidiameter, n. half of a diameter.

Etymology

LL (as SEMI-, DIAMETER)

For further exploring for "semidiameter" in Webster Dictionary Online