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List of 12-letter words containing

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There are 20 twelve-letter words containing I, 2L, N, P, R and T

ANTIPARALLELantiparallel adj. (Mathematics) (of vectors) Parallel but in opposite directions.
antiparallel n. (Geometry) A line that forms equal angles with two other lines, but in opposite directions.
ANTIPARALLEL adj. making with a transverse line an internal angle equal to the external angle made by another line.
BIPARENTALLYbiparentally adv. In a biparental manner.
BIPARENTAL adv. relating to or derived from two parents.
BIPROPELLANTbipropellant n. A propellant composed of two components (typically a fuel and an oxidizer) that react together in the…
BIPROPELLANT n. a rocket propellant consisting of fuel and oxidizer stored separately until ignition.
COMPTROLLINGcomptrolling n. The financial work of a comptroller.
COMPTROLL v. (obsolete) to control, esp. in a financial sense, also CONTROL, CONTROUL, COUNTROL.
DIPROPELLANTDIPROPELLANT n. a rocket propellant consisting of two substances, usually a fuel and an oxidizer.
ENTROPICALLYentropically adv. By means of or in relation to entropy.
ENTROPIC adv. relating to entropy.
INTERPELLANTinterpellant adj. Interpelling; interrupting.
interpellant n. One who, or that which, interpels.
INTERPELLANT adj. interrupting.
INTERPELLATEinterpellate v. (Obsolete) To interrupt (someone) so as to inform or question (that person about something).
interpellate v. (Philosophy) To address (a person) in a way that presupposes a particular identification of them; to…
interpellate v. (Transitive, chiefly politics) To question (someone) formally concerning official or governmental policy or business.
INTERPLEURALinterpleural adj. Between layers of the pleura.
INTERPLEURAL adj. situated between the right and left pleural cavities.
INTERPLUVIALinterpluvial n. (Geology) A period of decreased rainfall.
INTERPLUVIAL n. a period between bouts of rain.
INTERPOLABLEinterpolable adj. Capable of, or suitable for, being interpolated.
INTERPOLABLE adj. that can be interpolated.
PERITONEALLYperitoneally adv. By way of the peritoneum.
PERITONEAL adv. relating to the peritoneum, also PERITONAEAL.
PORCELLANITEporcellanite n. Alternative form of porcelanite.
PORCELLANITE n. a jasper-like shale highly indurated by contact metamorphism.
PREALLOTTINGpreallotting v. Present participle of preallot.
PREALLOT v. to allot beforehand.
PREINSTALLEDpreinstalled v. Simple past tense and past participle of preinstall.
PRESENTIALLYpresentially adv. In a presential manner.
PRESENTIAL adv. relating to or having actual presence.
PROTOCOLLINGprotocolling v. Present participle of protocol.
PROTOCOL v. to draw up a protocol.
PRUDENTIALLYprudentially adv. In a prudential manner.
PRUDENTIAL adv. of or relating to prudence, exercising good judgment.
TELPHERLINESTELPHERLINE n. a line bearing a telpher.
UNPRELATICALunprelatical adj. Not prelatical.
UNPRELATICAL adj. not prelatical.

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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