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semidiurnal

Semidiurnal is a 11 letter word which starts with the letter S and ends with the letter L for which we found 2 definitions.

Definition
(a.) Pertaining to or accomplished in half a day or twelve hours; occurring twice every day.
(a.) Pertaining to or traversed in six hours or in half the time between the rising and setting of a heavenly body; as a semidiurnal arc.
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