a tentative theory about the natural world; a concept that is not yet verified but that if true would explain certain facts or phenomena; "a scientific hypothesis that survives experimental testing becomes a scientific theory"; "he proposed a fresh theory of alkalis that later was accepted in chemical practices"
a proposal intended to explain certain facts or observations
a dive in which the diver throws the feet forward to complete a full backward somersault and enters the water feet first and facing away from the diving board
a person who gains (gains an advantage or gains profits); "she was clearly the gainer in that exchange"
the act of terminating a project or procedure before it is completed; "I wasted a year of my life working on an abort"; "he sent a short message requesting an abort due to extreme winds in the area"
terminate a pregnancy by undergoing an abortion
cease development, die, and be aborted; "an aborting fetus"
terminate before completion; "abort the mission"; "abort the process running on my computer"