English Words Starting With X
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- xanthophore/ˈzænθə(ʊ)ˌfɔː/A specialized pigment cell containing yellow or orange pigments, primarily pteridines and carotenoids.nounVery Rare (C2)
- xanthophyll/ˈzænθə(ʊ)fɪl/A yellow or yellowish-brown pigment found in plants, algae, and some bacteria; a type of oxygen-containing carotenoid.nounC2 / Highly Specialised
- xanthosiderite/zænθəʊˈsaɪdəraɪt/A mineral consisting of hydrous ferric oxide, typically brown or yellowish-brown in colour.nounVery Low
- xanthus/ˈzanθəs/A personal name, specifically from classical mythology and geography.nounVery Low
- xat/zæt/A carved totem pole or memorial pole erected by certain Native American peoples of the Pacific Northwest, particularly the Haida, Tlingit, and Tsimshian.nounExtremely low / Technical / Ethnographic
- xaverian brother/zæˈvɪə.ri.ən ˈbrʌð.ər/A member of a Catholic religious teaching congregation, the Xaverian Brothers, founded in Belgium in 1839 and dedicated to education.nounLow
- xavier/ˈzeɪvɪə(r)/ or /ˈɛksəvɪə(r)/A male given name of Basque origin, meaning 'new house' or 'bright'.nounLow
- xda/ˌeks.diːˈeɪ/A brand name and online community originally associated with early Windows Mobile and later Android smartphone development, known for custom firmware, modding, and technical discussion.nounLow Frequency (Specialized/Technical)
- xebec/ˈziːbɛk/A small, three-masted Mediterranean sailing ship with lateen and square sails, historically used for trade and piracy.nounVery Rare / Obsolete
- xenakis/zɛˈnɑːkɪs/A proper noun, most commonly referring to Iannis Xenakis (1922-2001), a Greek-French composer, architect, and engineer known for his pioneering work in electronic and stochastic music.nounLow
- xenia/ˈziːnɪə/The effect of foreign pollen on the endosperm or embryo of a seed.nounVery Low
- xenic acid/ˌzɛnɪk ˈasɪd/A weak, unstable acid with the chemical formula H₂XeO₄, formed by the dissolution of xenon trioxide in water. A rare compound of the noble gas xenon in its highest oxidation state (+6).nounVery low
- xenical/ˈzenɪk(ə)l/A proprietary brand name for the prescription drug orlistat, used to treat obesity.nounC2
- xennial/zɛnɪəl/A person born on the cusp between Generation X and the Millennial generation, typically from the late 1970s to early 1980s.adjectivenounLow
- xenobiotic/ˌzɛnəʊbaɪˈɒtɪk/A chemical substance that is foreign to, and typically harmful to, a living organism or biological system.nounLow
- xenoblast/ˈzɛnə(ʊ)blɑːst/A crystal in a metamorphic rock that has grown with an irregular shape because its growth was inhibited by surrounding minerals.nounVery low
- xenobot/ˈzɛnəʊbɒt/A microscopic, self-assembling biological robot created from frog stem cells, designed to perform specific tasks.nounVery Low (Specialist)
- xenocrates/zɪˈnɒkrətiːz/Proper noun referring to an ancient Greek philosopher (c.396–314 BCE), a student of Plato and head of the Platonic Academy.nounVery Low Frequency (C2+)
- xenocryst/ˈzenəkrɪst/A crystal fragment that becomes incorporated into a magma or igneous rock and does not form from the cooling of that magma; it is foreign to its host rock.nounLow
- xenocurrency/ˌzenəʊˈkʌrənsi/A currency that circulates outside its country of origin.nounVery low
Showing 41–60 of 157 words.