belonging to or on or near the back or upper surface of an animal or organ or part; "the dorsal fin is the vertical fin on the back of a fish and certain marine mammals"
a device that signals the occurrence of some undesirable event
an automatic signal (usually a sound) warning of danger
fear resulting from the awareness of danger
warn or arouse to a sense of danger or call to a state of preparedness; "The empty house alarmed him"; "We alerted the new neighbors to the high rate of burglaries"
bearing a stress or accent; "an iambic foot consists of an unstressed syllable followed by a stressed syllable as in `delay'"
suffering severe physical strain or distress; "he dropped out of the race, clearly distressed and having difficulty breathing"; "the victim was in a bad way and needed immediate attention"
a device for showing the operating condition of some system
a signal for attracting attention
(chemistry) a substance that changes color to indicate the presence of some ion or substance; can be used to indicate the completion of a chemical reaction or (in medicine) to test for a particular reaction
the act of rotating as if on an axis; "the rotation of the dancer kept time with the music"
a planned recurrent sequence (of crops or personnel etc.); "crop rotation makes a balanced demand on the fertility of the soil"; "the manager had only four starting pitchers in his rotation"
a single complete turn (axial or orbital); "the plane made three rotations before it crashed"; "the revolution of the earth about the sun takes one year"
(mathematics) a transformation in which the coordinate axes are rotated by a fixed angle about the origin
sculpture suspended in midair whose delicately balanced parts can be set in motion by air currents
a port in southwestern Alabama on Mobile Bay
a river in southwestern Alabama; flows into Mobile Bay
capable of changing quickly from one state or condition to another; "a highly mobile face"
moving or capable of moving readily (especially from place to place); "a mobile missile system"; "the tongue is...the most mobile articulator"
having transportation available
(of groups of people) tending to travel and change settlements frequently; "a restless mobile society"; "the nomadic habits of the Bedouins"; "believed the profession of a peregrine typist would have a happy future"; "wandering tribes"