dictionary help| flip-flop | medical dictionary |
A term used to describe the coordinated transfer of two phospholipid molecules from opposite sides of a lipid bilayer membrane. Now used to mean the passage of a phospholipid species from one lamella of a lipid bilayer membrane to the other.
This entry appears with permission from the Dictionary of Cell and Molecular Biology
(11 Mar 2008)
FLIP, flip, flip angle, Flip Chip Pin Grid Array < Prev | Next > flip-flop, flip-over disease, flippase
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| flip-flop | computing dictionary |
<computer hardware> A digital logic circuit that can be in one of two states which it switches (or "toggles") between under control of its inputs. It can thus be considered as a one bit memory. Three types of flip-flop are common: the SR flip-flop, the JK flip-flop and the D-type flip-flop (or latch).
Early literature refers to the "Eccles-Jordan circuit" and the "Eccles-Jordan binary counter", using two vacuum tubes as the active (amplifying) elements for each bit of information storage. Later implementations using bipolar transistors could operate at up to 20 million state transitions per second as early as 1963.
(01 Mar 1995)
flip angle, Flip Chip Pin Grid Array, flip-flop < Prev | Next > flip-over disease, flippase, flipper
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