ˌripəˈdistēə noun plural
Usage: capitalized
Etymology: New Latin, from rhipid- + Greek histia, plural of histion sail; akin to Greek histanai to cause to stand — more at stand
: an order of extinct crossopterygian fishes that have the basal bones of the median fins united into one mass — see holoptychiidae , osteolepidae
• rhip·i·dis·ti·an | ̷ ̷ ̷ ̷|distēən adjective or noun
• rhip·i·dis·tid -tə̇d adjective or noun