| ANTIQUARIANISMS | • antiquarianisms n. Plural of antiquarianism. • ANTIQUARIANISM n. an interest in antiquarian things. |
| EQUALITARIANISM | • equalitarianism n. Egalitarianism. • EQUALITARIANISM n. belief in equality. |
| QUADRAGENARIANS | • quadragenarians n. Plural of quadragenarian. • QUADRAGENARIAN n. a person who is forty years old, or between forty and fifty. |
| QUADRINGENARIES | • quadringenaries n. Plural of quadringenary. • QUADRINGENARY n. a four-hundredth anniversary or its celebration. |
| QUADRIVALENCIES | • QUADRIVALENCY n. the state of being quadrivalent, also QUADRIVALENCE. |
| QUANTIFICATIONS | • quantifications n. Plural of quantification. • QUANTIFICATION n. the operation of quantifying. |
| QUARTERBACKINGS | • QUARTERBACKING n. wisdom after the event, esp. by spectators. |
| QUARTERFINALIST | • quarterfinalist n. A person or team that takes part in a quarterfinal. • quarter-finalist n. Somebody or something that appears in a quarter-final of a competition. • QUARTERFINALIST n. one who reaches a quarterfinal. |
| QUODLIBETARIANS | • quodlibetarians n. Plural of quodlibetarian. • QUODLIBETARIAN n. a self-satisfied, disputatious person. |
| REACQUAINTANCES | • reacquaintances n. Plural of reacquaintance. • REACQUAINTANCE n. a new acquaintance. |
| SESQUICARBONATE | • sesquicarbonate n. (Inorganic chemistry) A chemical compound containing three carbonate ions for every two metal ions. • sesquicarbonate n. (Inorganic chemistry) A chemical compound containing one carbonate and one bicarbonate ion in each formula… • SESQUICARBONATE n. a salt that is neither a simple normal carbonate nor a simple bicarbonate but often a combination of the two. |
| SESQUIPEDALIANS | • sesquipedalians n. Plural of sesquipedalian. • SESQUIPEDALIAN n. a polysyllabic word, also SESQUIPEDAL. |
| TRANQUILISATION | • tranquilisation n. Alternative form of tranquillization. • TRANQUILISATION n. the process of tranquilising, also TRANQUILIZATION. |
| UBIQUITARIANISM | • ubiquitarianism n. The beliefs of the ubiquitarians. • UBIQUITARIANISM n. the Lutheran doctrine that holds that Christ is no more present in the elements of the Eucharist than elsewhere, as he is present in all places at all times. |
| UNACQUAINTANCES | • UNACQUAINTANCE n. lack of acquaintance. |