† polyphotaladj.Obsolete(a) rare designating a lamp in which several burners may be used in the same reflector;(b) rare = polyphoteadj.Sense (b) is apparently only attested in dictionaries or glossaries.
ΚΠ
1841 Trans. Royal Sc. Soc. Arts 474 The lamp is polyphotal, or allows several lights or burners to be used simultaneously in the same reflector.
1890 Cent. Dict. XVI. 4607/2Polyphotal, same as polyphote.