cartilaginous fishes having horizontally flattened bodies and enlarged winglike pectoral fins with gills on the underside; most swim by moving the pectoral fins | the playing of a card to start a trick in bridge |
any of the stiff bony spines in the fin of a fish | a position of being the initiator of something and an example that others will follow (especially in the phrase `take the lead') |
the syllable naming the second (supertonic) note of any major scale in solmization | a jumper that consists of a short piece of wire |
a column of light (as from a beacon) | thin strip of metal used to separate lines of type in printing |
a group of nearly parallel lines of electromagnetic radiation | restraint consisting of a rope (or light chain) used to restrain an animal |
a branch of an umbel or an umbelliform inflorescence | the timing of ignition relative to the position of the piston in an internal-combustion engine |
(mathematics) a straight line extending from a point | an advantage held by a competitor in a race |
| evidence pointing to a possible solution |
| a news story of major importance |
| the introductory section of a story |
| an indication of potential opportunity |
| (baseball) the position taken by a base runner preparing to advance to the next base |
| an actor who plays a principal role |
| (sports) the score by which a team or individual is winning |
| the angle between the direction a gun is aimed and the position of a moving target (correcting for the flight time of the missile) |
| mixture of graphite with clay in different degrees of hardness; the marking substance in a pencil |
| a soft heavy toxic malleable metallic element; bluish white when freshly cut but tarnishes readily to dull grey |