electronic equipment that provides visual images of varying electrical quantities
a negatively charged electrode that is the source of electrons entering an electrical device
the positively charged terminal of a voltaic cell or storage battery that supplies current
a column of light (as from a beacon)
(mathematics) a straight line extending from a point
cartilaginous fishes having horizontally flattened bodies and enlarged winglike pectoral fins with gills on the underside; most swim by moving the pectoral fins
a group of nearly parallel lines of electromagnetic radiation
