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List of 12-letter words containing

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There are 16 twelve-letter words containing G, N, 3O, P and S

CORONOGRAPHScoronographs n. Plural of coronograph.
CORONOGRAPH n. a special telescope used to observe prominences and the corona around the edge of the sun.
COSPONSORINGcosponsoring v. Present participle of cosponsor.
co-sponsoring v. Present participle of co-sponsor.
COSPONSOR v. to sponsor jointly.
MONOPHTHONGSmonophthongs n. Plural of monophthong.
MONOPHTHONG n. two written vowels representing a single sound, e.g. 'oo', 'oa'.
MONOPOLISINGmonopolising v. Present participle of monopolise.
MONOPOLISE v. to get a monopoly of, also MONOPOLIZE.
ODONTOGRAPHSodontographs n. Plural of odontograph.
ODONTOGRAPH n. an instrument for obtaining curves for gear-teeth.
OLIGOPSONIESoligopsonies n. Plural of oligopsony.
OLIGOPSONY n. a market situation in which each of a few buyers exerts a disproportionate influence on the market.
PHONOLOGISTSphonologists n. Plural of phonologist.
PHONOLOGIST n. a student of phonology, the branch of linguistics that deals with systems of sounds.
POGONOTOMIESPOGONOTOMY n. shaving.
PONEROLOGIESPONEROLOGY n. the theological doctrine of wickedness or evil.
POTAMOGETONSpotamogetons n. Plural of potamogeton.
POTAMOGETON n. a plant of the pondweed genus of water plants, with floating and submerged leaves.
PROROGATIONSprorogations n. Plural of prorogation.
PROROGATION n. the act of prorogating, postponing a meeting.
PYCNOGONOIDSpycnogonoids n. Plural of pycnogonoid.
PYCNOGONOID n. a sea-spider, also PYCNOGONID.
SPONGICOLOUSspongicolous adj. Inhabiting sponges.
SPONGICOLOUS adj. living in association with, usually within, a sponge.
SPONGOLOGIESSPONGOLOGY n. the study of sponges.
SPONGOLOGISTspongologist n. One who studies spongology.
SPONGOLOGIST n. one who studies sponges.
ZOOSPORANGIAzoosporangia n. Plural of zoosporangium.
zoösporangia n. Plural of zoösporangium.
ZOOSPORANGIUM n. a spore case or sporangium bearing zoospores.

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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