13-Letter Words Start with 'photo'

There are 41 13-letter words that start with 'photo'.

photobiologic	photocathodes
photochemical	photochemists
photochromism	photocomposed
photocomposer	photocomposes
photocurrents	photodetector
photoelectric	photoelectron
photoemission	photoemissive
photoengraved	photoengraver
photoengraves	photofinisher
photogeologic	photographers
photographies	photographing
photogravures	photoionizing
photomontages	photonegative
photooxidized	photooxidizes
photoperiodic	photopolymers
photopositive	photoproducts
photoreaction	photoreceptor
photoreducing	photoscanning
photostatting	photosynthate
phototoxicity	phototropisms
photovoltaics

Note: These 41 13-letter words that start with 'photo' are found from the USA & Canada version of the tournament Scrabble word list.

Also see words start with photos, photoc, photog, photop, photom, photot, photoe, photor, photod, photoi, photol, photof, photoo, photob, photon, photok, photoa, photoj, photov.

6-letter words start with 'photo' (3)
7-letter words start with 'photo' (3)
8-letter words start with 'photo' (6)
9-letter words start with 'photo' (16)
10-letter words start with 'photo' (27)
11-letter words start with 'photo' (29)
12-letter words start with 'photo' (47)
13-letter words start with 'photo' (41)
14-letter words start with 'photo' (37)
15-letter words start with 'photo' (39)