temperature midpoint


tem·per·a·ture mid·point (Tm, tm),

the midpoint in the change in optic properties (absorbance, rotation) of a structured polymer (for example, DNA) with increasing temperature. Synonym(s): melting temperature

tem·per·a·ture mid·point

(tm) (tem'pĕr-ă-chŭr mid'poynt) The midpoint in the change in optic properties (absorbance, rotation) of a structured polymer (e.g., DNA) with increasing temperature.