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There are 13 eleven-letter words containing ONIUM
| ARCHEGONIUM | • archegonium n. (Botany) A multicellular reproductive structure that contains a large, non-motile gamete (egg cell)… • ARCHEGONIUM n. the structure on the pteridophyte prothallus that produces the sessile female gametes. |
| CARPOGONIUM | • carpogonium n. (Biology) The female organ in the red algae (Rhodophyta), having an elongated process which is the receptive… • CARPOGONIUM n. an egg-bearing vessel in red algae. |
| ERYTHRONIUM | • erythronium n. A plant of the genus Erythronium; a dogtooth violet. • erythronium n. (Obsolete) An early proposed name for vanadium. • Erythronium prop.n. A taxonomic genus within the family Liliaceae – the fawnlilies. |
| HORMOGONIUM | • hormogonium n. (Biology) A small, motile filament, formed by some cyanobacteria, that detaches and grows by cell division… • HORMOGONIUM n. a portion of a filament in many cyanobacteria that becomes detached as a reproductive body. |
| HYDROXONIUM | • hydroxonium n. (Chemistry) The cation obtained by reacting a proton with water - H3O+; hydronium. • HYDROXONIUM n. the obsolete name for the cation H3O+ derived from protonation of water. |
| PANDEMONIUM | • pandemonium n. A loud, wild, tumultuous protest, disorder, or chaotic situation, usually of a crowd, often violent. • pandemonium n. An outburst; loud, riotous uproar, especially of a crowd. • PANDEMONIUM n. riotous uproar, also PANDAEMONIUM. |
| PELARGONIUM | • pelargonium n. Any of various flowering plants of the genus Pelargonium, commonly called geraniums. • Pelargonium n. An extract of the rose geranium, Pelargonium sidoides, used as an alternative medicine. • Pelargonium prop.n. A taxonomic genus within the family Geraniaceae – the geraniums. |
| PHOSPHONIUM | • phosphonium n. (Chemistry) the tetravalent positively-charged phosphorus cation R4P+. • PHOSPHONIUM n. the radical PH4, analogous to ammonium. |
| POLEMONIUMS | • polemoniums n. Plural of polemonium. • POLEMONIUM n. a genus of gamopetalous perennial herbs, including the Jacob's ladder and the Greek valerian. |
| POSITRONIUM | • positronium n. (Physics, chemistry) An exotic atom (specifically, an onium) consisting of a positron (anti-electron)… • POSITRONIUM n. a positron and and an electron bound together in a short-lived unit, similar to a hydrogen atom. |
| SPOROGONIUM | • sporogonium n. The sporophyte of a bryophyte (moss, liverwort or hornwort), generally consisting of a foot, seta and capsule. • SPOROGONIUM n. an organ that produces asexual spores in mosses. |
| STRAMONIUMS | • stramoniums n. Plural of stramonium. • STRAMONIUM n. thorn apple, and its leaves used in medicine, also STRAMONY. |
| SULPHONIUMS | • sulphoniums n. Plural of sulphonium. • SULPHONIUM n. the positively charged group SH3, its salts or derivatives, also SULFONIUM. |
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: 55 words
- Scrabble in French: 5 words
- Scrabble in Spanish: 1 word
- Scrabble in Italian: no word
- Scrabble in German: no word
- Scrabble in Romanian: no word
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