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There are 4 twelve-letter words containing OPERI
| HALOPERIDOLS | • haloperidols n. Plural of haloperidol. • HALOPERIDOL n. a synthetic tranquillizing drug used in treating psychiatric illnesses. |
| ISOPERIMETER | • isoperimeter n. (Geometry) A figure that has the same perimeter as another. • ISOPERIMETER n. a figure with perimeter equal to another. |
| ISOPERIMETRY | • isoperimetry n. (Mathematics) The study of isoperimetric structures. • ISOPERIMETRY n. the state of being isoperimetrical. |
| PHOTOPERIODS | • photoperiods n. Plural of photoperiod. • PHOTOPERIOD n. the period during every 24 hours when an organism is exposed to daylight. |
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: 19 words
- Scrabble in French: 6 words
- Scrabble in Spanish: 2 words
- Scrabble in Italian: 9 words
- Scrabble in German: no word
- Scrabble in Romanian: 34 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.
- www.BestWordClub.com to play duplicate online scrabble.
- 1word.ws to play with words, anagrams, suffixes, prefixes, etc.
- Ortograf.ws to look for words.
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