释义 |
hy·droi·da I. \hīˈdrȯidə\ noun plural Usage: capitalized Etymology: New Latin, from Hydra, included genus + -oida : an order of Hydrozoa comprising forms alternating a well-developed asexual polyp generation with a generation of free medusae or of abortive medusoid reproductive structures on the polyps — see leptomedusae II. Etymology: New Latin, from Hydra, included genus + -oida synonym of hydrozoa |