A surface-dwelling colonial marine coelenterate of the Atlantic and Mediterranean. It has a disc-like float bearing a sail that is used to catch the wind.
帆水母
Velella velella, suborder Chondrophora, order Hydroida
Example sentencesExamples
However, if the beach is covered with by-the-wind sailors, this could be a signal to look for glass floats.
The by-the-wind sailor is a colonial hydroid that has adapted to life on the ocean wave.
Does the unusually early and large influx of by-the-wind sailors indicate anything?
The by-the-wind sailor is actually a whole colony of tiny jellyfish-like creatures called polyps.
While by-the-wind sailors resemble jellyfish in structure, Craig said they are not classified as a true jellyfish.