Ellen's Show Me More Show Tracee Ellis Ross and Andy Lassner Play âSuâMove It, Move Itâ - Duration: 3 minutes, 38 seconds.
2. halftone-an engraving used to reproduce an illustration. halftone engraving, photoengraving. engraving-a block or plate or other hard surface that has been engraved.
Half-life: the time taken for a radioactive substance to decrease its radio activity to HALF its current amount (measured in Bequerels). Source(s): A level physics =D.