Pronunciation: (sub-lit'ur-ul), [key]
1. of or pertaining to the biogeographic region of the ocean bottom between the littoral and bathyal zones, from the low water line to the edge of the continental shelf, or to a depth of approximately 660 ft. (200 m).
2. being or situated in the zone of a lake extending from the lowest depth of rooted photosynthetic plants to the level at which the photosynthetic rate of flora equals the respiration rate.
a sublittoral zone or region.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.