THERMAL UNIT.
\θˈɜːmə͡l jˈuːnɪt], \θˈɜːməl jˈuːnɪt], \θ_ˈɜː_m_əl j_ˈuː_n_ɪ_t]\
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(Math.) When equal quantities of the same substance in the same state are acted on by heat so that the same effect is produced, the quantities of heat are equal from whatever sources the heat may come. The quantity of heat required to change a given weight (as one pound) of ice at the freezing point into water at the freezing point, is a T. U. ; the quantity of heat required to raise a pound of water from o C. to 1 C. is another T. U.
By Henry Percy Smith
Word of the day
Snake's-head
- Guinea-hen flower; -- so called in England because its spotted petals resemble the scales of a snake's head.