From plano- + parallel. <span class="searchmatch">planoparallel</span> (not comparable) Alternative form of plane-parallel....
planoepithelial planogamete planographic planography planometer planometry <span class="searchmatch">planoparallel</span> planophile planozygote “plano-”, in Webster’s Revised Unabridged Dictionary...
text parallel transport parallelwise parallel world plane-parallel <span class="searchmatch">planoparallel</span> pseudoparallel quasiparallel subparallel superparallel teleparallel...