“upon”) + πτῆσῐς (ptêsĭs, “flight”), from πέτομαι (pétomai, “fly”). <span class="searchmatch">isopiptesis</span> (plural isopipteses) An isoline that joins points on a map where the...
isepiptesis (plural isepipteses) (rare) Alternative form of <span class="searchmatch">isopiptesis</span>. 1896, Alfred Newton, A Dictionary of Birds[1], page 559: His chief object was...