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List of 12-letter words containing

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There are 6 twelve-letter words containing 3O, P, S, T and Z

OPSONIZATIONopsonization n. (Immunology) The process or result of opsonizing.
OPSONIZATION n. the process of opsonizing, also OPSONISATION.
PHOTOIONIZESphotoionizes v. Third-person singular simple present indicative form of photoionize.
PHOTOIONIZE v. to ionize by electromagnetic radiation, also PHOTOIONISE.
PROTOCOLIZESprotocolizes v. Third-person singular simple present indicative form of protocolize.
PROTOCOLIZE v. to make a protocol of, also PROTOCOLISE.
SPERMATOZOONspermatozoon n. (Cytology) A reproductive cell or gamete of a male, carried in semen, that fertilizes an ovum to produce a zygote.
spermatozoön n. Alternative spelling of spermatozoon.
SPERMATOZOON n. a male sexual cell, which fertilises the egg, also SPERMATOZOAN.
TROPHOZOITEStrophozoites n. Plural of trophozoite.
TROPHOZOITE n. in Protozoa, the trophic phase of an adult.
ZOOPLANKTONSzooplanktons n. Plural of zooplankton.
ZOOPLANKTON n. tiny, free-floating organisms in aquatic systems.

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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