semidiurnal

Dictionary: sem·i·di·ur·nal (sĕm'ē-dī-ûr'nəl, sĕm'ī-) pronunciation

adj.

Of, relating to, occurring, or performed during half a day.
Occurring or coming approximately once every 12 hours, as the tides.
Of or relating to the arc described by a celestial body between its meridian passage and its points of rising or setting.

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What kind of tidal pattern occurs along California's shores Diurnal Mixed Semidiurnal or Spring? Read answer...

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Dictionary. The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved. Read