List of 15-letter words ending with

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There are 9 fifteen-letter words ending with UM

ARCHAEBACTERIUM	• archaebacterium n. Any primitive bacteria-like organism in the kingdom Archaea. • archæbacterium n. (Rare) Alternative spelling of archaebacterium. • ARCHAEBACTERIUM n. any of the microorganisms comprising the archaea.
CORYNEBACTERIUM	• corynebacterium n. Any bacterium, of the genus Corynebacterium, many of which are pathogenic or parasitic. • Corynebacterium prop.n. A taxonomic genus within the family Mycobacteriaceae – gram-positive bacteria, including the species… • CORYNEBACTERIUM n. a bacterium that causes e.g. diphtheria.
CRYPTOSPORIDIUM	• cryptosporidium 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.
ENTEROBACTERIUM	• enterobacterium n. (Microbiology) Any of very many gram-negative rod-shaped bacteria of the family Enterobacteriaceae… • ENTEROBACTERIUM n. any of a family of bacteria that includes salmonella and shigella.
FERROMOLYBDENUM	• ferromolybdenum n. An iron-molybdenum alloy. • FERROMOLYBDENUM n. an alloy of iron with molybdenum.
INTERAMBULACRUM	• interambulacrum n. (Zoology) In echinoderms, one of the areas or zones intervening between two ambulacra. • INTERAMBULACRUM n. in sea urchins, a radial band between ambulacra.
MACROSPORANGIUM	• macrosporangium n. (Botany) A megasporangium; sporangium or conceptacle containing only large spores; opposed to microsporangium. • MACROSPORANGIUM n. a sporangium producing only megaspores.
MICROSPORANGIUM	• microsporangium n. (Botany) A case, capsule or container that holds microspores. • MICROSPORANGIUM n. the sporangium in heterosporous plants where the microspores develop.
TETRASPORANGIUM	• tetrasporangium n. (Botany) A sporangium that produces tetraspores. • TETRASPORANGIUM n. the sporangium in which tetraspores are formed.

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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English Wiktionary: 178 words
Scrabble in French: no word
Scrabble in Spanish: 1 word
Scrabble in Italian: no word
Scrabble in German: no word
Scrabble in Romanian: no word

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