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Noun: semidiameter  `se-mee-dI'a-mi-tu(r)
  1. The apparent radius of a celestial body when viewed as a disc from the earth

Derived forms: semidiameters

Type of: r, radius

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semiconductor unit
semiconscious
semiconsciousness
semidark
semidarkness
semidesert
semidetached
semidetached house
semi-detached house
semidiameter
semi-dry
semiempirical
semiepiphyte
semi-erect
semi-evergreen
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semi-final
semifinalist
semifluid
semifluidity