A₁P₃L₁A₁N₁A₁T₁S₁

10 points

APLANATS is validvalid

APLANAT, a type of reflecting or refracting surface [n]

58,243 of 196,601 in NWL2023·also valid in CSW24

APLANAT, an aplanatic lens, i.e. one free from spherical aberration [n]

10,560 of 280,887 in CSW24·also valid in NWL2023