O1P3T1I1C3I1S1T1S1
13 points
OPTICISTS is validvalid
OPTICIST, one engaged in the study of light and vision [n]
OPTICIST, one engaged in the study of light and vision [n]
OPTICIST, one engaged in the study of light and vision [n]
OPTICIST, one engaged in the study of light and vision [n]