List of 12-letter words ending with

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There are 14 twelve-letter words ending with RIUM

APPRESSORIUM	• appressorium n. (Mycology) A bulbous formation produced by parasitic fungi that is well attached to the cuticle of the… • APPRESSORIUM n. the flattened thickened tip of a hyphal branch by which some parasitic fungi attach to and penetrate their host.
ARCHESPORIUM	• archesporium n. (Botany) Any of the cells of the sporangium that give rise to spores. • ARCHESPORIUM n. a primitive cell or group of cells from which a mother cell develops.
CLADOSPORIUM	• Cladosporium prop.n. A taxonomic genus within the family Davidiellaceae – fungi including some of the most common indoor… • CLADOSPORIUM n. a type of fungus.
DEINOTHERIUM	• deinotherium n. Alternative form of dinotherium. • DEINOTHERIUM n. an extinct elephantine mammal with downward-curving tusks, also DEINOTHERE, DINOTHERE, DINOTHERIUM.
DOLPHINARIUM	• dolphinarium n. An aquarium that houses dolphins. • DOLPHINARIUM n. a place where dolphins are kept.
EVANGELARIUM	• EVANGELARIUM n. a book containing passages from the gospels to be used as part of the liturgy, also EVANGELIAR, EVANGELIARION, EVANGELIARIUM, EVANGELIARY.
HYPOGASTRIUM	• hypogastrium n. An area of the human abdomen residing below the umbilicus. • HYPOGASTRIUM n. (Latin) the lower middle abdominal region.
INHALATORIUM	• INHALATORIUM n. an institution or department for administering inhalations.
MESOGASTRIUM	• mesogastrium n. (Anatomy) The part of the embryonic mesentery that includes the stomach. • MESOGASTRIUM n. the mesentery supporting the embryonic stomach.
PERINEPHRIUM	• PERINEPHRIUM n. the fatty tissue surrounding the kidney.
RADIOTHORIUM	• radiothorium n. (Physics) The radioactive isotope thorium-228. • RADIOTHORIUM n. a radioactive isotope of thorium with the mass number 228.
SUSPENSORIUM	• suspensorium n. (Anatomy) Anything that suspends or holds up a part, especially the mandibular suspensorium, a series… • SUSPENSORIUM n. that which holds up a part, esp. the arrangement joining the lower jaw to the cranium in vertebrates below mammals.
SYNCLINORIUM	• synclinorium n. (Geology) A large syncline with superimposed smaller folds. • SYNCLINORIUM n. a great synclinal structure carrying minor flexures.
UNGUENTARIUM	• unguentarium n. A small bottle used to store balms or scented oils. • UNGUENTARIUM n. a vessel for holding unguents.

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 1Word.ws and WikWik.org.

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English Wiktionary: 37 words
Scrabble in French: 4 words
Scrabble in Spanish: no word
Scrabble in Italian: no word
Scrabble in German: no word
Scrabble in Romanian: 1 word

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