11-Letter Words Starting With U and Ending With M

Explore 28 matching words, including ultrapurism, ultraracism, ultravacuum, umbelliform, unbipentium.

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All 28 Matching Words

ultrapurismAn extreme form of purismultraracismExtreme racism, the belief in the superiority of one's ethnic group or raceultravacuumA nearly perfect vacuum; i.e. an almost or fully complete absence of matter, especially a gas at very low pressure.umbelliform(botany) Having the shape of an umbel.unbipentiumThe systematic element name for the (as yet undiscovered) chemical element with atomic number 125 (symbol Ubp).unbiquadiumThe systematic element name for the (as yet undiscovered) chemical element with atomic number 124 (symbol Ubq).unbiseptiumThe systematic element name for the (as yet undiscovered) chemical element with atomic number 127 (symbol Ubs).underbottomThe lowest part of the profile of a ship or submarine.underdogismTenacious support for the underdog, or disadvantaged partyunderstreamThe lower or deeper part of a stream, especially a current in such a placeunipartyismA political system that has only one political party.unnilennium(dated) meitnerium.unnilhexium(dated) seaborgium.unniloctium(dated) hassium.unobtainiumA fictional material or component which, if it existed, would enable one to easily solve a hard problem.unsocialismA view or practice that opposes socialism.untransform(transitive) To reverse the transformation of; to change or convert back to a previous state.untrihexiumThe systematic element name for the (as yet undiscovered) chemical element with atomic number 136 (symbol Uth).untriniliumThe systematic element name for the (as yet undiscovered) chemical element with atomic number 130 (symbol Utn).ununpentium(dated) The systematic element name for the chemical element with atomic number 115 (symbol Uup). The element is now named moscovium.ununquadium(dated) The systematic element name for flerovium, the chemical element with atomic number 114 (symbol Uuq).ununseptium(dated) The systematic element name for the chemical element with atomic number 117 (symbol Uus). The element is now named tennessine.upheavalismThe practice or policy of social or political upheaval.uppertendomThe very highest social class; the upper ten.ureterogramA diagnostic image produced by ureterography.urethrogramThe diagnostic image produced by urethrography.uricotelism(biochemistry) The excretion of uric acid or its salts as a result of deaminationuropatagiumThe portion of patagium found between the hind limbs and connecting to the tail.