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There are 11 words ending with RIDIUM

IRIDIUMiridium n. (Uncountable) A chemical element (symbol Ir) with an atomic number of 77: a very hard, brittle, silvery-white…
iridium n. (Countable) A single atom of this element.
IRIDIUM n. a metallic element.
PERIDIUMperidium n. (Mycology) The outer layer that covers the spore-bearing organ in many fungi.
PERIDIUM n. the outer coating of the spore carrier of a fungus.
SPORIDIUMsporidium n. (Botany) A secondary spore borne on a promycelium, or a filament produced from a spore, in certain kinds…
sporidium n. An ascospore.
sporidium n. Any spore.
NEPHRIDIUMnephridium n. (Biology) A tubular excretory organ in some invertebrates.
nephridium n. (Anatomy) The embryonic excretory organ that develops into the kidney.
NEPHRIDIUM n. in invertebrates and lower chordates, an organ serving the function of a kidney.
OSMIRIDIUMosmiridium n. (Mineralogy) A hard, corrosion-resistant alloy of osmium and iridium, used in pen nibs.
OSMIRIDIUM n. a very hard corrosion-resistant white or grey natural alloy of osmium and iridium, also IRIDOSMINE, IRIDOSMIUM.
ANTHERIDIUMantheridium n. (Botany, mycology) An organ producing male gametes called antherozoids, found in some algae, ferns, and bryophytes.
ANTHERIDIUM n. the male reproductive organ of some plants, also ANTHERID.
CLOSTRIDIUMclostridium n. Any of several mostly anaerobic gram-positive bacteria, of the genus Clostridium, that are present in…
Clostridium prop.n. A taxonomic genus within the family Clostridiaceae – the clostridium bacteria.
CLOSTRIDIUM n. any of a genus of spore-forming mostly anaerobic soil or intestinal bacteria.
HESPERIDIUMhesperidium n. Any of several kinds of true berries, including citrus fruit such as the lemon and lime, which have…
HESPERIDIUM n. a plant with a berry like a citrus fruit.
SPHAERIDIUMsphaeridium n. (Zoology) A sense organ found on the exterior of most sea urchins, consisting of an oval or spherical…
SPHAERIDIUM n. a minute spheroidal body on the surface of a sea urchin, perhaps a sense organ.
PLATINIRIDIUMplatiniridium n. (Chemistry, mineralogy) A natural alloy of platinum and iridium occurring in grayish metallic rounded…
PLATINIRIDIUM n. an alloy of platinum and iridium.
CRYPTOSPORIDIUMcryptosporidium n. Any protozoan of the genus Cryptosporidium, intestinal parasites of humans and other vertebrates that…
Cryptosporidium prop.n. A taxonomic genus within the family Cryptosporidiidae – coccidian protozoan parasites causing the disease…
CRYPTOSPORIDIUM n. any of a genus of protozoans parasitic in the gut of vertebrates including humans and sometimes causing diarrhea.

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: 29 words
  • Scrabble in French: 4 words
  • Scrabble in Spanish: no word
  • Scrabble in Italian: no word
  • Scrabble in German: 1 word
  • Scrabble in Romanian: 1 word


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