direct tide の意味「順潮」

意味	順潮 the tidal bulge on the side of the earth facing the moon, which occurs together with an opposite high tide on the far side

direct tideのWordNet

意味	the occurrence of high tide on one side of the earth coinciding with high tide on the opposite side 地球の片側での満潮が反対側の満潮と同時に起こること
上位語	high tide満潮 high water高潮 highwater最高潮