noun: (computing) A dynamic menu; a list of options in a computer application which appears below a heading when it is selected, and remains only as long as the user needs it.
noun: (biology) A technique by which a protein is brought down in a test tube by another.
noun: (signal processing) The conversion of video footage to a higher frame rate by duplicating certain frames.
noun: (usually uncountable) Dodder (plant of genus Cuscuta).
noun: (juggling) A trick done with rings where each ring is pulled down over the head instead of being caught and held in the hand.
noun: (exercise) An exercise mostly performed by pulling cables, a bar, or handles from a machine situated diagonally to the front top of the sportsman and targetting the rear muscles.
