Penta meaning, before a vowel,] pent-. PENTA- definition: a combining form occurring in loanwords from Greek, meaning “five” (Pentateuch ); on this model, used in the formation of compound words (pentavalent ). a numeral, 5, V, etc, representing this number 3. It is used to form words such as pentagon, pentathlon, and pentatonic. PENTA- is a combining form that means five or containing five. From scientific terms like “pentachloride” to poetic terms like “pentameter,” the prefix “penta” is used to describe a wide range of words. "five, containing five," from Greek penta- (before a vowel pent-), combining form of… See origin and meaning of penta-. penta- synonyms, penta- pronunciation, penta- translation, English dictionary definition of penta-. five Examples of words with the root penta Definition of penta- combining form in Oxford Advanced Learner's Dictionary. It comes from Greek and is used in words like pentahedron, pentane, and pentacarbonyl. See examples of penta- used in a sentence. a combining form occurring in loanwords from Greek, meaning “five” (Pentateuch). Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more. Click for more definitions. 6 meanings: five → 1. Learn how to use Greek prefixes to name compounds and ions. Origin of Penta- Greek from pente five penkwe in Indo-European roots From American Heritage Dictionary of the English Language, 5th Edition From Ancient Greek πέντε (pente, “five" ) From Wiktionary Gr penta- < pente, five From Webster's New World College Dictionary, 5th Edition penta-, a combining form occurring in loanwords from Greek, meaning "five'' (Pentateuch); on this model, used in the formation of compound words (pentavalent). . Penta- means five and is used to indicate five atoms of the same element in a molecule or ion. Also, [esp. Define penta-. On this model, penta- is used in the formation of compound words (pentavalent) Penta- definition: Five. 8. See etymology, pronunciation, and examples of penta- in the Oxford English Dictionary. Dec 25, 2025 · “ penta- ”, in Diccionario de la lengua española [Dictionary of the Spanish Language] (in Spanish), online version 23. the cardinal number that is the sum of four and one 2. 1, Royal Spanish Academy [Spanish: Real Academia Española], 15 December 2025 penta- is a prefix derived from Greek πεντα-, meaning five. The prefix “penta” is derived from the Greek word for five, and it is used to describe a variety of words.


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