neap tide (nēp)
A tide that occurs when the difference between high and low tide is least. Neap tide comes twice a month, in the first and third quarters of the moon.
[Middle Englishneep, fromOld Englishnēp(flōd), neap (tide).]
(click for a larger image)neap tide
Neap tides occur when the sun, earth, and moon form a right angle and the gravitational pull of the sun counteracts the pull of the moon.
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