radiation consisting of waves of energy associated with electric and magnetic fields resulting from the acceleration of an electric charge (noun.phenomenon)
any of the stiff bony spines in the fin of a fish(noun.animal)
a sharp rigid animal process or appendage; as a porcupine quill or a ridge on a bone or a ray of a fish fin (noun.animal)
cartilaginous fishes having horizontally flattened bodies and enlarged winglike pectoral fins with gills on the underside; most swim by moving the pectoral fins(noun.animal)
a collimated flow of particles (atoms or electrons or molecules) (noun.phenomenon)
cartilaginous fishes having horizontally flattened bodies and enlarged winglike pectoral fins with gills on the underside; most swim by moving the pectoral fins(noun.animal)
any sluggish bottom-dwelling ray of the order Torpediniformes having a rounded body and electric organs on each side of the head capable of emitting s more..any sluggish bottom-dwelling ray of the order Torpediniformes having a rounded body and electric organs on each side of the head capable of emitting strong electric discharges(noun.animal)
powerful free-swimming tropical ray noted for `soaring' by flapping winglike fins; usually harmless but has venomous tissue near base of the tail as i more..powerful free-swimming tropical ray noted for `soaring' by flapping winglike fins; usually harmless but has venomous tissue near base of the tail as in stingrays(noun.animal)
extremely large pelagic tropical ray that feeds on plankton and small fishes; usually harmless but its size make it dangerous if harpooned (noun.animal)
large edible rays having a long snout and thick tail with pectoral fins continuous with the head; swim by undulating the edges of the pectoral fins (noun.animal)