List of 15-letter words containing

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There are 18 fifteen-letter words containing TET

ALLOTETRAPLOIDS	• allotetraploids n. Plural of allotetraploid. • ALLOTETRAPLOID n. an organism having a diploid set of chromosomes from each of its parent.
ALLOTETRAPLOIDY	• allotetraploidy n. The quality of being allotetraploid. • ALLOTETRAPLOIDY n. an allotetraploid organism.
AUTOTETRAPLOIDS	• autotetraploids n. Plural of autotetraploid. • AUTOTETRAPLOID n. an individual or strain whose chromosome complement consists of four copies of a single genome due to doubling of an ancestral chromosome complement.
AUTOTETRAPLOIDY	• autotetraploidy n. The property of being autotetraploid. • AUTOTETRAPLOIDY n. the state of being autotetraploid.
ICOSITETRAHEDRA	• icositetrahedra n. Plural of icositetrahedron. • ICOSITETRAHEDRA n. solid figures with twenty-four plane faces (plural of 16-letter word).
OXYTETRACYCLINE	• oxytetracycline n. (Pharmacology) A yellow crystalline broad-spectrum tetracycline antibiotic C₂₂H₂₄N₂O₉ that is produced… • OXYTETRACYCLINE n. a yellow crystalline broad-spectrum antibiotic produced by a soil actinomycete.
PERIPATETICALLY	• peripatetically adv. In a peripatetic manner. • PERIPATETICAL adv. walking about from place to place, itinerant, also PERIPATETIC.
PERIPATETICISMS	• peripateticisms n. Plural of peripateticism. • PERIPATETICISM n. the state of being peripatetic.
TETARTOHEDRALLY	• TETARTOHEDRAL adv. having one fourth the number of planes required by complete symmetry.
TETARTOHEDRISMS	• tetartohedrisms n. Plural of tetartohedrism. • TETARTOHEDRISM n. the state of being tetartohedral, having one fourth the number of planes required by complete symmetry.
TETRABASICITIES	• TETRABASICITY n. the state of being tetrabasic.
TETRABRANCHIATE	• tetrabranchiate adj. (Zoology) Of or relating to the Tetrabranchiata; having four gills. • tetrabranchiate n. (Zoology) Any of the Tetrabranchiata. • TETRABRANCHIATE n. any mollusc belonging to the Tetrabranchia, with four gills.
TETRAETHYLLEADS	• tetraethyl␣leads n. Plural of tetraethyl lead. • TETRAETHYLLEAD n. a colourless oily insoluble liquid formerly used in petrol to prevent knocking.
TETRAGRAMMATONS	• TETRAGRAMMATON n. a sacred word or acronym of four letters.
TETRAHYDROFURAN	• tetrahydrofuran n. (Organic chemistry) A heterocyclic ether having a five-membered ring with four carbon atoms and one… • TETRAHYDROFURAN n. a flammable liquid ether derived from furan and used as a solvent and as an intermediate in organic synthesis.
TETRAMETHYLLEAD	• tetramethyllead n. (Organic chemistry) A compound with chemical formula C₄H₁₂Pb, used as an antiknock additive for gasoline. • TETRAMETHYLLEAD n. a volatile poisonous liquid used esp. formerly as an antiknock agent.
TETRASPORANGIUM	• tetrasporangium n. (Botany) A sporangium that produces tetraspores. • TETRASPORANGIUM n. the sporangium in which tetraspores are formed.
TETRASYLLABICAL	• TETRASYLLABICAL adj. having four syllables, also TETRASYLLABIC.

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: 139 words
Scrabble in French: 3 words
Scrabble in Spanish: 2 words
Scrabble in Italian: 64 words
Scrabble in German: no word
Scrabble in Romanian: 67 words

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