Word.ws English Dictionary

semidiameter

semidiameter noun: the apparent radius of a star etc, when viewed from Earth.

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...

semidiameter meaning in Tamil

semidiameter in Tamil

அரை விட்டம்

Forms of semidiameter

pluralsemidiameters

Origin of semidiameter

From Middle English semidiametre, semydiametre, from Medieval Latin sēmidiameter, equivalent to semi- + diameter.

Words formed from semidiameter

Questions about semidiameter

What does semidiameter mean?
Semidiameter means the apparent radius of a star etc, when viewed from Earth.
What is semidiameter in Tamil?
Semidiameter in Tamil is அரை விட்டம். See Semidiameter meaning in Tamil.
What part of speech is semidiameter?
Semidiameter is a noun.
What is the plural of semidiameter?
The plural of semidiameter is semidiameters.

Words near semidiameter in the dictionary

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

Source and license

Adapted from Wiktionary: semidiameter (page history and authors); semidiameter (Tamil Wiktionary) (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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Cite this entry: “semidiameter.” Word.ws, https://word.ws/semidiameter. Based on Wiktionary, CC BY-SA 4.0.