Word.ws English Dictionary

semidiameters

semidiameters is the plural of semidiameter.

Meaning of semidiameter

Noun

semidiameter (plural semidiameters)

  1. The apparent radius of a star etc, when viewed from Earth.
  2. (archaic) A radius: half of a diameter.
    • [B]etweene the ſphere of Saturne and the Firmament, there is ſuch an incredible and vaſt ſpace or diſtance (7000000. ſemidiameters of the earth, as Tycho [Brahe] calculates) void of ſtarres: [...]1638, Democritus Junior [pseudonym; Robert Burton], “Ayre Rectified. With a Digression of the Ayre.”, in The Anatomy of Melancholy. […], 5th edition, Oxford, Oxfordshire: […] [Robert Young, Miles...

Questions about semidiameters

What is semidiameters the plural of?
Semidiameters is the plural of semidiameter.

Words near semidiameters in the dictionary

  1. Semidey
  2. Semideys
  3. semidiagrammatic
  4. semidialectal
  5. semidiameter
  6. semidiameters
  7. semidiapason
  8. semidiapasons
  9. semidiapente
  10. semidiapentes
  11. semidiaphaneity

Source and license

Adapted from Wiktionary: semidiameters (page history and authors); semidiameter (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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