Brøonsted
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base — 1. The lower part or bottom; the part of a pyramidal or conical structure opposite the apex; the foundation. SYN: basis [TA], basement (1). 2. In pharmacy, the chief ingredient of a mixture. 3. In chemistry, an … Medical dictionary
theory — A reasoned explanation of known facts or phenomena that serves as a basis of investigation by which to seek the truth. SEE ALSO: hypothesis, postulate. [G. theoria, a beholding, speculation, t., fr. theoros, a beholder] adsorption t. of narcosis… … Medical dictionary
acid — 1. A compound yielding a hydrogen ion in a polar solvent ( e.g., in water); acids form salts by replacing all or part of the ionizable hydrogen with an electropositive element or radical. 2. In popular … Medical dictionary