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There are 6 fifteen-letter words containing OPTER
| ARCHAEOPTERYXES | • archaeopteryxes n. Plural of archaeopteryx. • ARCHAEOPTERYX n. a Jurassic fossil bird of the Archaeopteryx genus, with a long bony tail, sharp-toothed jaws, and wings bearing three clawed digits. |
| CROSSOPTERYGIAN | • crossopterygian adj. (Zoology) Of or pertaining to the Crossopterygii, an infraclass of bony fish. • crossopterygian n. (Zoology) One of the Crossopterygii. • CROSSOPTERYGIAN n. a member of a subclass of mostly extinct bony fishes, including the coelacanth. |
| EPHEMEROPTERANS | • ephemeropterans n. Plural of ephemeropteran. • EPHEMEROPTERAN n. any insect of the mayfly family. |
| LEPIDOPTEROLOGY | • lepidopterology n. (Biology, zoology, entomology) The scientific study of butterflies and moths (the Lepidoptera). • lepidopterology n. Lepidoptery, (the hobby of butterfly collecting). • LEPIDOPTEROLOGY n. the study of butterflies and moths. |
| MALACOPTERYGIAN | • malacopterygian n. (Archaic) (zoology) Any of the obsolete order of fish Malacopterygii. • MALACOPTERYGIAN adj. belonging to the Malacopterygii, a soft-finned suborder of bony fishes, including herrings and salmon. |
| SAUROPTERYGIANS | • sauropterygians n. Plural of sauropterygian. • SAUROPTERYGIAN n. any carnivorous Mesozoic marine reptile of the group Sauropterygia, with paddle-like limbs. |
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: 52 words
- Scrabble in French: 5 words
- Scrabble in Spanish: 3 words
- Scrabble in Italian: no word
- Scrabble in German: no word
- Scrabble in Romanian: 6 words
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