News Â· 10:18 p.m. Â· July 29, 2012. Celebrity Net Worth recently compiled a list of the 20 richest living rappers. At first we were sure that reading their list was going to make us feel very, very bad about the current state of our checking accounts, but no worries â each of these rappers is so wealthy that it's impossible to put into perspective.
Definition of aquifer for English Language Learners. : a layer of rock or sand that can absorb and hold water.
An underground water supply which comes from porous rock, sand, gravel, etc.: The alluvial aquifer provided the community with ground water that made it possible for their wells and springs to continue functioning. aqua (s) (noun) , aquae (pl). 1. Water; especially, when used in the pharmaceutical industry as a solvent.