one of two forms that coelenterates take: is the free-swimming sexual stage in the life cycle of a coelenterate and has a gelatinous umbrella-shaped body and tentacles
(Greek mythology) a woman transformed into a Gorgon by Athena; she was slain by Perseus
a colorless nonflammable liquid used as a solvent for fats and oils; because of its toxicity its use as a cleaning fluid or fire extinguisher has declined
at or in the front; "I see the lights of a town ahead"; "the road ahead is foggy"; "staring straight ahead"; "we couldn't see over the heads of the people in front"; "with the cross of Jesus marching on before"
ahead of time; in anticipation; "when you pay ahead (or in advance) you receive a discount"; "We like to plan ahead"; "should have made reservations beforehand"
in a forward direction; "go ahead"; "the train moved ahead slowly"; "the boat lurched ahead"; "moved onward into the forest"; "they went slowly forward in the mud"
leading or ahead in a competition; "the horse was three lengths ahead going into the home stretch"; "ahead by two pawns"; "our candidate is in the lead in the polls"; "way out front in the race"; "the advertising campaign put them out front in sales"
to a different or a more advanced time (meaning advanced either toward the present or toward the future); "moved the appointment ahead from Tuesday to Monday"; "pushed the deadline ahead from Tuesday to Wednesday"
to a more advanced or advantageous position; "a young man sure to get ahead"; "pushing talented students ahead"
toward the future; forward in time; "I like to look ahead in imagination to what the future may bring"; "I look forward to seeing you"