apyrous

[In Fr. apyre; Lat. apyros; Gr. ἄπυρος ( apuros ) = without fire: a, priv., and πῦρ (pur) = fire.] Incombustible; not able to be altered by the greatest amount of heat to which, in the present state of scientific knowledge, it can be subjected. An apyrous body is not the same as a re fractory one. In the former the heat produces no perceptible change; whilst the latter may be in various ways altered, though not fused. aq. A contraction for AQUA, used in physicians' prescriptions. aq. bull., contracted from aqua bulliens = boiling water. aq. fer., contracted from aqua fervens = boiling water. aq. dest., contracted from aqua des till at a = distilled water. aq. font., contracted from aqua fontana = spring water.