the·ta
(thā′tə, thē′-)n.
The eighth letter of the Greek alphabet. See Table at alphabet.
[Greek thēta, of Phoenician origin; akin to Hebrew ṭêt, teth.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
theta
(ˈθiːtə)n
1. (Letters of the Alphabet (Foreign)) the eighth letter of the Greek alphabet (Θ, θ), a consonant, transliterated as th
2. (Letters of the Alphabet (Foreign)) the lower-case form of this letter used in phonetic transcription to represent the voiceless dental fricative th as in thick, both. Compare edh
[C17: from Greek, of Semitic origin; compare Hebrew tēth]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
the•ta
(ˈθeɪ tə, ˈθi-)n., pl. -tas.
the eighth letter of the Greek alphabet (Θ, θ).
[1595–1605; < Greek thêta < Semitic. See teth]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
| Noun | 1. |  theta - the 8th letter of the Greek alphabetGreek alphabet - the alphabet used by ancient Greeks alphabetic character, letter of the alphabet, letter - the conventional characters of the alphabet used to represent speech; "his grandmother taught him his letters" |
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