Măx'i-mŭm, n.

Măx'i-mŭm, n.; pl. MĂX'I-MȦ. [Lat., from maximus, the greatest, superlative of magnus, great.] (Math. & Physics.) The greatest quantity or value attainable in a given case; or, the greatest value attained by a quantity which first increases and then begins to decrease; — opposed to minimum.

Maximum thermometer, a thermometer that registers the highest degree of temperature attained in a given time, or since its last adjustment.