Definition of semidiameter in English:

Share this entry


Pronunciation: /ˌsɛmɪdʌɪˈamɪtə/


Half of a diameter.
Example sentences
  • The moon will, at the full, be totally eclipsed, if its latitude is less than the difference between its own semidiameter, and that of the earth's shadow.
  • By the semidiameter of a celestial object, is meant the angle which the radius of its apparent circular disc subtends at the eye of the observer.

For editors and proofreaders

Line breaks: semi|diam¦eter

Share this entry

What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.