Word Study
[2x]
: Pâ Pæ Pè Pé Pœ P- P. P/ P< Pa Pb Pc Pd Pe Pf Ph Pi Pj Pk Pl Pm Pn Po Pp Pr Ps Pt Pu Pv Pw Px Py
phosphene
CIDE DICTIONARY
phosphene, n. [Gr. light + to show.].
A luminous impression produced through excitation of the retina by some cause other than the impingement upon it of rays of light, as by pressure upon the eyeball when the lids are closed. Cf. After-image. [1913 Webster]
OXFORD DICTIONARY
phosphene, n. the sensation of rings of light produced by pressure on the eyeball due to irritation of the retina.
Etymology
irreg. f. Gk phos light + phaino show
For further exploring for "phosphene" in Webster Dictionary Online