| fluorochrome |
any of various fluorescent substances used in fluorescence microscopy to stain specimens
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| flap |
roll: move in a wavy pattern or with a rising and falling motion; "The curtains undulated"; "the waves rolled towards the beach" move noisily; "flags flapped in the strong wind" any broad thin and limber covering attached at one edge; hangs loose or projects freely; "he wrote on the flap of the envelope" beat: move with a thrashing motion; "The bird flapped its wings"; "The eagle beat its wings and soared high into the sky" dither: an excited state of agitation; "he was in a dither"; "there was a terrible flap about the theft" the motion made by flapping up and down beat: move with a flapping motion; "The bird's wings were flapping" dither: make a fuss; be agitated a movable piece of tissue partly connected to the body pronounce with a flap, of alveolar sounds a movable airfoil that is part of an aircraft wing; used to increase lift or drag
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| flammable |
easily ignited
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| flocculation |
the process of flocculating; forming woolly cloudlike aggregations
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| Florence |
Firenze: a city in central Italy on the Arno; provincial capital of Tuscany; center of the Italian Renaissance from 14th to 16th centuries a town in northeast South Carolina; transportation center
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