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There are 16 nine-letter words beginning with OO
| OOFTISHES | • OOFTISH n. (Yiddish) money, also OOF. |
| OOGAMETES | • oogametes n. Plural of oogamete. • OOGAMETE n. a female gamete of certain protozoa. |
| OOGENESES | • oogeneses n. Plural of oogenesis. • OOGENESIS n. the enlargement and meiosis of an oogonium that produces an ovum, also OOGENY. |
| OOGENESIS | • oogenesis n. (Biology) The formation and development of an oocyte or ovum. • oögenesis n. Alternative spelling of oogenesis. • OOGENESIS n. the enlargement and meiosis of an oogonium that produces an ovum, also OOGENY. |
| OOGENETIC | • oogenetic adj. Of or pertaining to oogenesis. • oögenetic adj. Alternative spelling of oogenetic. • OOGENETIC adj. relating to oogenesis, the enlargement and meiosis of an oogonium that produces an ovum. |
| OOGONIUMS | • oogoniums n. Plural of oogonium. • OOGONIUM n. a female sexual organ in algae and fungi. |
| OOLACHANS | • oolachans n. Plural of oolachan. • OOLACHAN n. (Native American) the North Pacific candlefish, also EULACHAN, EULACHON, OOLAKAN, OOLICHAN, OULACHON, OULAKAN, ULICON, ULIKON. |
| OOLICHANS | • oolichans n. Plural of oolichan. • OOLICHAN n. (Native American) the north Pacific candlefish, also EULACHAN, EULACHON, OOLACHAN, OOLAKAN, OULACHON, OULAKAN, ULICON, ULIKON. |
| OOLOGICAL | • oological adj. Oologic. • oölogical adj. Alternative spelling of oological. • OOLOGICAL adj. relating to oology, the collection and study of birds' eggs, also OOLOGIC. |
| OOLOGISTS | • oologists n. Plural of oologist. • oölogists n. Plural of oölogist. • OOLOGIST n. an expert in oology. |
| OOMPAHING | • oompahing v. Present participle of oompah. • OOMPAH v. to play a repeated rhythmic deep sound. |
| OOMPAHPAH | • oompahpah n. Alternative form of oom-pah. • OOMPAHPAH n. an imitation of the sound of a tuba. |
| OOMYCETES | • oomycetes n. Plural of oomycete. • Oomycetes prop.n. A taxonomic class within the phylum Pseudofungi – water molds. • oömycetes n. Plural of oömycete. |
| OOPHORONS | • OOPHORON n. an ovary. |
| OOSPHERES | • oospheres n. Plural of oosphere. • oöspheres n. Plural of oösphere. • OOSPHERE n. an unfertilized egg within an oogonium. |
| OOSPOROUS | • OOSPOROUS adj. of or pertaining to an oospore, a special kind of spore resulting from the fertilization of an oosphere by antherozoids, also OOSPORIC. |
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: 46 words
- Scrabble in French: 5 words
- Scrabble in Spanish: 3 words
- Scrabble in Italian: no word
- Scrabble in German: 1 word
- Scrabble in Romanian: 15 words
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