rule of three |
the method of finding the fourth term of a mathematical proportion when three terms are given, the product of the first and fourth terms being equal to the product of the second and third. |
rule of thumb |
a useful general principle or method based on practical experience rather than scientific proof. |
rule out |
to remove from consideration. |
ruler |
one who rules or governs. [2 definitions] |
Rules Committee |
a powerful committee of the U.S. House of Representatives that determines when and how new legislation will be considered by House members. Also referred to as House Rules Committee, its formal name is United States House Committee on Rules. [2 definitions] |
rule the roost |
to dominate or control one's family or associates. |
ruling |
a decision by an authority, as in a court of law. [3 definitions] |
rum |
an alcoholic beverage distilled from fermented molasses, sugar cane, or the like. |
Rumania |
Romania. |
Rumanian |
of or pertaining to Rumania or its people, culture, language, or the like; Romanian. [3 definitions] |
rumba |
a complex ballroom dance in triple time that originated in Cuba. [3 definitions] |
rumble |
to make or emit a low, heavy, continuous sound, as of distant thunder. [8 definitions] |
rumble seat |
an open passenger seat in the rear of some early automobiles which can be folded and closed when not in use. |
rumbustious |
wild and disorderly; rambunctious. |
rumen |
the first stomach of a cud-chewing animal. |
ruminant |
any of various cud-chewing cloven-hoofed quadrupeds, such as cattle, deer, or camels, that usu. have a stomach divided into three or four compartments. [3 definitions] |
ruminate |
to think at length; meditate. [4 definitions] |
rummage |
to make a quick, vigorous search. [5 definitions] |
rummage sale |
a sale of miscellaneous new or used articles, usu. donated to raise funds for a charity, service organization, or the like. |
rummy1 |
any of various card games for two or more players, in which the object is to form sets or sequences of cards. |
rummy2 |
(slang) a drunkard. |