12-letter words containing a, r, v, o
- preformative — a prefixture in Semitic languages
- preoperative — occurring or related to the period or preparations before a surgical operation.
- preovulatory — to produce and discharge eggs from an ovary or ovarian follicle.
- prerogatived — possessing a prerogative
- preservation — to keep alive or in existence; make lasting: to preserve our liberties as free citizens.
- preservatory — a preservative
- prevaricator — a person who speaks falsely; liar.
- previsionary — having foresight
- privatdocent — (in German and certain other universities) a private teacher or lecturer recognized by the university but receiving no compensation from it, being remunerated by fees.
- privatdozent — (in German and certain other universities) a private teacher or lecturer recognized by the university but receiving no compensation from it, being remunerated by fees.
- private joke — a joke that is understood only by a certain social group
- pro-activity — serving to prepare for, intervene in, or control an expected occurrence or situation, especially a negative or difficult one; anticipatory: proactive measures against crime.
- proper value — characteristic root.
- provableness — the quality of being provable
- proverbially — of, relating to, or characteristic of a proverb: proverbial brevity.
- providential — of, relating to, or resulting from divine providence: providential care.
- provincially — belonging or peculiar to some particular province; local: the provincial newspaper.
- provisionary — providing or serving for the time being only; existing only until permanently or properly replaced; temporary: a provisional government.
- provitamin a — carotene.
- radicivorous — feeding on the roots of plants
- ravioli code — (jargon, humour) Object-oriented code consisting of a number of small and loosely-coupled software components. Presumably, the term is a compliment, contrasting the code with spaghetti code.
- reactivation — to render active again; revive.
- reconvalesce — to convalesce again
- reconveyance — to convey again.
- reevaluation — an act or instance of evaluating or appraising.
- reinvigorate — to give vigor to; fill with life and energy; energize.
- reinvitation — the act of inviting.
- rejuvenation — to make young again; restore to youthful vigor, appearance, etc.: That vacation has certainly rejuvenated him.
- remotivation — the act or an instance of motivating, or providing with a reason to act in a certain way: I don't understand what her motivation was for quitting her job. Synonyms: motive, inspiration, inducement, cause, impetus.
- renovascular — of or relating to the blood vessels of the kidneys.
- revalidation — to make valid; substantiate; confirm: Time validated our suspicions.
- revegetation — to cause vegetation to grow again on: to revegetate eroded lands.
- revelational — the act of revealing or disclosing; disclosure.
- reverberator — to reecho or resound: Her singing reverberated through the house.
- reversionary — of, relating to, or involving a reversion.
- review board — panel appointed to reconsider a matter
- revisitation — the act of visiting.
- ring-a-levio — a children's game in which members of one group try to find and capture hiding members of another group: a captured player is kept in a circle drawn on the ground and is set free when tagged by a teammate
- rock carving — the practice of carving on rock
- roman-fleuve — saga (def 3).
- roncesvalles — a village in N Spain, in the Pyrenees: defeat of part of Charlemagne's army and the death of Roland a.d.
- rooseveltian — of, pertaining to, advocating, or following the principles, views, or policies of Franklin Delano Roosevelt or of Theodore Roosevelt.
- rotary valve — a valve that rotates continuously or through an arc to open and close.
- royal octavo — a book size, 61⁄4 by 10 inches
- samuel lover — Samuel, 1797–1868, Irish novelist, painter, and songwriter.
- san salvador — a republic in NW Central America. 13,176 sq. mi. (34,125 sq. km). Capital: San Salvador.
- sanguivorous — feeding on blood, as a bat or insect.
- sao salvador — a former name of Salvador (def 2).
- savoir faire — knowledge of just what to do in any situation; tact.
- savoir-faire — knowledge of just what to do in any situation; tact.