cartilaginous fishes having horizontally flattened bodies and enlarged winglike pectoral fins with gills on the underside; most swim by moving the pectoral fins | 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 |
any of the stiff bony spines in the fin of a fish | armament consisting of a long cylindrical self-propelled underwater projectile that detonates on contact with a target |
the syllable naming the second (supertonic) note of any major scale in solmization | a small explosive device that is placed on a railroad track and fires when a train runs over it; the sound of the explosion warns the engineer of danger ahead |
a column of light (as from a beacon) | a small firework that consists of a percussion cap and some gravel wrapped in paper; explodes when thrown forcefully against a hard surface |
a group of nearly parallel lines of electromagnetic radiation | an explosive device that is set off in an oil well (or a gas well) to start or to increase the flow of oil (or gas) |
a branch of an umbel or an umbelliform inflorescence | a large sandwich made of a long crusty roll split lengthwise and filled with meats and cheese (and tomato and onion and lettuce and condiments); different names are used in different sections of the United States |
(mathematics) a straight line extending from a point | a professional killer who uses a gun |