theta

[ they-tuh, thee- ]

noun
  1. the eighth letter of the Greek alphabet (Θ, θ).

  2. the consonant sound represented by this letter.

Origin of theta

1
1595–1605; <Greek thêta<Semitic See teth

Words Nearby theta

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024

How to use theta in a sentence

  • As vice president of theta, I was tasked with figuring out how to get members more involved.

    Frat Culture's Woman Problem | Samantha Wishman | April 22, 2011 | THE DAILY BEAST
  • In Scientology parlance, good news is theta news; entheta is the opposite.

  • The Gothic alphabet, in fact, as used in this country, had a theta for expressing in one letter our present t and h conjoined.

    The Book-Hunter | John Hill Burton
  • The theta Gammas wrote her down as material for a quaint little, quiet little dig,—not of sorority interest.

    Stanford Stories | Charles K. Field
  • We'll go back to 29, and put in sine squared theta minus one equal to z sub four.

    Spacehounds of IPC | Edward Elmer Smith
  • In order to make any solution at all possible you have assumed cosine squared theta negligible.

    Spacehounds of IPC | Edward Elmer Smith
  • He maintained, however, that he had noticed theta Cancri as well as the two planets, but without recording its position.

    The Story of the Heavens | Robert Stawell Ball

British Dictionary definitions for theta

theta

/ (ˈθiːtə) /


noun
  1. the eighth letter of the Greek alphabet (Θ, θ), a consonant, transliterated as th

  2. the lower-case form of this letter used in phonetic transcription to represent the voiceless dental fricative th as in thick, both: Compare edh

Origin of theta

1
C17: from Greek, of Semitic origin; compare Hebrew tēth

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