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2 ENTRIES FOUND:

semidiurnal

adjective semi·di·ur·nal \-dī-ˈər-nəl\

Definition of SEMIDIURNAL

1
:  relating to or accomplished in half a day
2
:  occurring twice a day
3
:  occurring approximately every half day <the semidiurnal tides>

First Known Use of SEMIDIURNAL

1594

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April 21, 2015
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