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List of 12-letter words containing

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There are 11 twelve-letter words containing 3E, N, 2O and P

BENZOPHENONEbenzophenone n. (Organic chemistry, countable) Any of a class of aromatic ketones based on the parent compound diphenylketone…
benzophenone n. (Organic chemistry, uncountable) The compound diphenylmethanone.
BENZOPHENONE n. a colorless crystalline ketone used esp. as a perfume fixative and in sunscreens.
COENOSPECIEScoenospecies n. (Biology) Either of a group of related species that are able to form (often fertile) hybrids.
COENOSPECIES n. a species that can interbreed, also CENOSPECIES.
DETECTOPHONEDETECTOPHONE n. a secret telephone for eavesdropping.
ELECTROPHONEelectrophone n. (Music) any instrument designed to create sounds using electric currents.
ELECTROPHONE n. any instrument whose sound is produced by the oscillation of an electric current, such as an electronic organ, synthesizer, etc.
ENDOPEROXIDEendoperoxide n. (Chemistry, biochemistry) Any heterocycle containing a peroxide -O-O- residue in the ring; found especially…
ENDOPEROXIDE n. any of various biosynthetic intermediates in the formation of prostaglandins.
ENTEROPTOSESENTEROPTOSIS n. downward displacement of the intestines.
MONOTERPENESmonoterpenes n. Plural of monoterpene.
MONOTERPENE n. any of a class of terpenes containing two isoprene units per molecule.
NONEMPLOYEESnonemployees n. Plural of nonemployee.
NONEMPLOYEE n. one who is not an employee.
PREGNENOLONEpregnenolone n. (Biochemistry, steroids) A steroid prohormone involved in the steroidogenesis of progesterone, mineralocorticoids…
PREGNENOLONE n. a steroid ketone formed by the oxidation of steroids and yielding progesterone on dehydrogenation.
PROGESTERONEprogesterone n. (Biochemistry, steroids, uncountable) A steroid hormone, secreted by the ovaries, whose function is…
progesterone n. (Biochemistry, steroids, countable) A synthetic version of the compound, used in contraceptive pills…
PROGESTERONE n. a female sex hormone that prepares the uterus for the fertilized ovum and maintains pregnancy.
SPOROGENESESsporogeneses n. Plural of sporogenesis.
SPOROGENESIS n. reproduction by means of spores.

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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