† monophotaladj.
Origin: Formed within English, by compounding. Etymons: mono- comb. form, photal adj.
Etymology: < mono- comb. form + photal adj. Compare earlier monophote adj., and also polyphotal adj. at poly- comb. form 1.
Obsolete.
rare.
1889 1 xix. 440/2 Monophotal lamps, which can be placed singly on one and the same circuit.
This entry has been updated (OED Third Edition, December 2002; most recently modified version published online December 2020).