hydronaut التعريفات والمعاني == English == === Etymology === From hydro- + -naut. === Noun === hydronaut (plural hydronauts) An undersea explorer, such as a submariner. شارك هذه المقالة: Facebook Twitter WhatsApp LinkedIn كلمات ذات صلة hydronautics hydronautical hydronauts hydronium hydromantia hydrocution hydropathy hydrolat hydropathic