leach out

leach out

1. To become dissolved, eroded, or carried out (of something), by or as if by some percolating liquid. Nutrients have continued leaching out of the soil as the groundwater become more acidic. As water levels rose above the layers of sandstone, calcium slowly leached out over time.
2. To dissolve, erode, or carry something out (of something else) due to percolation. In this usage, a noun or pronoun is used between "leach" and "out." Increasingly acidic water has been leaching important minerals out of the land. He said that, over time, the saltwater would leach out the calcium within the limestone.
See also: leach, out
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
See also:
References in periodicals archive ?
So far, the FDA and representatives from the plastics industry have resisted these requests, arguing compounds like bisphenol A do not leach out of plastic containers at high-enough levels to pose any health threat.
Hexavalent chromium from CCA is sometimes released to the environment, however; if during the pressure-treating process the hexavalent chromium isn't fixed completely and converted to the more benign trivalent form, it can leach out of the wood in its original form.
However, the solvent degrades HDPE, helping pesticides enter and leach out of the plastic.
Acidic foods like tomatoes can cause copper to leach out of the pot and into your spaghetti sauce or whatever.
More elutions provided little additional information, and fewer gave no indication whether a given parameter was likely to leach out at the same rate over a long period of time or drop off markedly upon further leaching.
Once plastic has been heated, BPA can continue to leach out. For instance, when a plastic-lined can was washed out and refilled with water, that water soon picked up measurable quantities of BPA, Olea's team reports.