thermotic (thermotik)

[ In the spectrum of a flint-gla prism the apex of the thermotic curve-that is to say, the place of greatest he at effect is situated. outside the apparent spectrum in the ultra-red region. Lommel, Light (trans.), p. 201. thermotical (ther-mot'i-kal), a. [ -al .] Same as thermotic. Whewell, Hist. Induct. Sciences, x. 1, § 4.