| atrium | (noun) the central area in a building; open to the sky | - |
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| (noun) any chamber that is connected to other chambers or passageways (especially one of the two upper chambers of the heart) | - |
| endometrium | (noun) (pregnancy) the mucous membrane that lines the uterus; thickens under hormonal control and (if pregnancy does not occur) is shed in menstruation; if pregnancy occurs it is shed along with the placenta at parturition | - |
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| epigastrium | (noun) the region lying on or over the stomach (just below the sternum) | - |
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| myometrium | (noun) the smooth muscle forming the wall of the uterus | - |
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| natriuresis | (noun) the presence of abnormally large amounts of sodium in the urine | - |
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| triumph | (noun) a successful ending of a struggle or contest | Synonyms: victory |
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| (noun) the exultation of victory | - |
| triumvir | (noun) one of a group of three sharing public administration or civil authority especially in ancient Rome | - |
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| triumvirate | (noun) a group of three men responsible for public administration or civil authority | - |
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| ununtrium | (noun) a radioactive transuranic element, with atomic number 113 | Synonyms: atomic number 113, element 113, Uut |
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| yttrium | (noun) a silvery metallic element that is common in rare-earth minerals; used in magnesium and aluminum alloys | Synonyms: atomic number 39, Y |
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