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
plane-parallel
CIDE DICTIONARY
plane-parallel, a.
Having opposite surfaces exactly plane and parallel, as a piece of glass. [1913 Webster]
For further exploring for "plane-parallel" in Webster Dictionary Online