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There are 6 fifteen-letter words containing OPERI
| ISOPERIMETRICAL | • isoperimetrical adj. Isoperimetric. • ISOPERIMETRICAL adj. having equal perimeters. |
| NINCOMPOOPERIES | • nincompooperies n. Plural of nincompoopery. • NINCOMPOOPERY n. the state of being a nincompoop. |
| PHOTOPERIODISMS | • photoperiodisms n. Plural of photoperiodism. • PHOTOPERIODISM n. a plant or animal's response or capacity to respond to photoperiod. |
| PROPERISPOMENON | • properispomenon adj. (Linguistics, of a word) In Greek grammar, having a circumflex accent on the penultimate syllable. • properispomenon n. (Linguistics) A word having such an accent. • PROPERISPOMENON n. a word with the circumflex accent on the penultimate syllable. |
| RETROPERITONEAL | • retroperitoneal adj. Located behind the peritoneum. • RETROPERITONEAL adj. situated behind the peritoneum. |
| THERMOPERIODISM | • thermoperiodism n. The property of being thermoperiodic. • THERMOPERIODISM n. the effect on an organism of rhythmic temperature variations. |
Scrabble words — in black are valid world wide — in RED are not valid in North America — in GREEN are valid only in North America.
Definitions are short excerpt from the WikWik.org and 1Word.ws.
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See this list for:
- English Wiktionary: 39 words
- Scrabble in French: 5 words
- Scrabble in Spanish: no word
- Scrabble in Italian: 6 words
- Scrabble in German: no word
- Scrabble in Romanian: 15 words
Recommended websites
- Visit WikWik.org - to search for words and build lists from Wiktionary's words.
- www.BestWordList.com to create personalized word lists.
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- 1word.ws to play with words, anagrams, suffixes, prefixes, etc.
- Ortograf.ws to look for words.
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