メガロパMeanings1nounmegalopa; megalopsbiologyA larval stage of certain crustaceans, especially crabs, following the zoea stage. Used in biology and marine science contexts.カニのメガロパ幼よう生せいは、ゾエアの次つぎの段だん階かいです。The megalopa larva of crabs is the stage after the zoea.