Medical Definition of Rate constants

1. Proportionality constants equal to the initial rate of a reaction divided by the concentration of the reactant(s); e.g., in the reaction A → B + C, the rate of the reaction equals -d[A]/dt = k1[A]. The rate constant k1 is a unimolecular rate constant since there is only one molecular species reacting and has units of reciprocal time (e.g., sec-1). For the reverse reaction, B + C → A, the rate equals -d[B]/dt = d[A]/dt = k2[B][C]. The rate constant k2 is a bimolecular rate constant and has units of reciprocal concentration-time (e.g., m-1 sec-1). Synonym: velocity constants. (05 Mar 2000)

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Lexicographical Neighbors of Rate Constants

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ratchet up
ratchet wheel
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ratchet wrenches
rate-limiting step
rate-of-climb indicator
rate constants (current term)
rate equation
rate meter
rate of acceleration
rate of attrition
rate of climb
rate of climb indicator
rate of depreciation
rate of exchange
rate of flow
rate of growth
rate of inflation
rate of interest
rate of pay
rate of payment

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