D n.
sh letter is from Latin, which is from Greek, which took it from Phoenician, the probable ultimate origin being Egyptian. It is related most nearly to t and th; as, Eng. deep, G. tief; Eng. daughter, G. tochter, Gr. duhitr. See Guide to Pronunciation, sq. root178, 179, 229.
DISTILLATION n.
stillation (Chem.), the distillation, especially of complex solid substances, so that the ultimate constituents are separated or evolved in new compounds, -- usually requiring a high degree of heat; as, the destructive distillation of soft coal or of wood. -- Dry distillation, the distillation of substances by themsel…
F n.
eek digamma w consonant. The form and value of Greek letter came from the Phoenician, the ultimate source being probably Egyptian. Etymologically fis most closely related to p,k,v, and b; as in E. five, Gr. f, L. lupus, Gr. fox, vixen ; fragile, break ; fruit, brook, v. t.; E. bear, L. ferre. See Guide to Pronunciation…
HEAT n.
heat which assumes it to be, not a peculiar kind of matter, but a peculiar motion of the ultimate particles of matter. Heat engine, any apparatus by which a heated substance, as a heated fluid, is made to perform work by giving motion to mechanism, as a hot-air engine, or a steam engine. -- Heat producers. (Physiol.)…