| CENTENARIANS | • centenarians n. Plural of centenarian. • CENTENARIAN n. a person who is over one hundred years old. |
| COSCENARISTS | • coscenarists n. Plural of coscenarist. |
| ENARTHRODIAL | • enarthrodial adj. Relating to an enarthrosis. • ENARTHRODIAL adj. of or like an enarthrosis, a ball-and-socket joint. |
| MERCENARISMS | • MERCENARISM n. the state of being a mercenary. |
| MILLENARIANS | • millenarians n. Plural of millenarian. • MILLENARIAN n. one who believes in the second coming of Christ to reign on earth a thousand years. |
| MILLENARISMS | • MILLENARISM n. the belief that an ideal society will be produced in the near future, also MILLENARIANISM, MILLENNIALISM, MILLENNIANISM, MILLENNIARISM. |
| NONAGENARIAN | • nonagenarian n. Synonym of ninetysomething: a person between 90 and 99 years old. • nonagenarian adj. Of or related to ninetysomethings. • NONAGENARIAN n. a person whose age is in the nineties. |
| OCTOGENARIAN | • octogenarian n. Synonym of eightysomething: a person between 80 and 89 years old. • octogenarian adj. Of or related to eightysomethings. • OCTOGENARIAN n. a person whose age is in the eighties. |
| OCTOGENARIES | • octogenaries n. Plural of octogenary. • OCTOGENARY n. someone eighty years old. |
| PHENARSAZINE | • PHENARSAZINE n. an arsenic derivative used as a poison gas, aka adamsite. |
| SENARMONTITE | • senarmontite n. (Mineralogy) An isometric-hexoctahedral mineral containing antimony and oxygen. • SENARMONTITE n. antimony trioxide in cubic crystalline form. |
| SEPTUAGENARY | • septuagenary adj. (Now rare) Of or related to the number seventy, particularly. • septuagenary n. (Now rare) Synonym of septuagenarian: a seventy-year-old. • SEPTUAGENARY n. a septuagenarian. |
| SEXAGENARIAN | • sexagenarian n. Synonym of sixtysomething: a person between 60 and 69 years old. • sexagenarian adj. Of or related to sixtysomethings. • SEXAGENARIAN adj. aged between sixty and seventy years old. |
| SEXAGENARIES | • sexagenaries n. Plural of sexagenary. • SEXAGENARY n. someone in their sixties. |
| SEXCENTENARY | • sexcentenary adj. Of or pertaining to the number six hundred, or to a six-hundred-year period. • sexcentenary n. A six-hundredth anniversary. • SEXCENTENARY n. an anniversary recurring every six hundred years. |
| TERCENTENARY | • tercentenary n. The 300th anniversary of an event. • tercentenary adj. Of or relative to such an anniversary, or to a span of 300 years. • TERCENTENARY adj. pertaining to a three-hundred year anniversary. |
| TRICENTENARY | • tricentenary n. Tercentenary. • TRICENTENARY n. a three-hundred year anniversary, or the celebrations for it, also TERCENTENARY. |