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1. Admitting the passage of gas or liquid through pores or interstices.
2. Easily crossed or penetrated: a porous border.

[Middle English, from Old French poreux, poros, from Medieval Latin porōsus, from Latin porus, passage; see pore2.]

po′rous·ly adv.
po′rous·ness n.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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References in periodicals archive ?
"Today, we don't recognise the border," Collins said, pointing to how freely and porously the two countries trade and interact.
Unfolding a series of personal and collective crises in a text that porously reflects and ridicules the state of the literary tradition, this novel is Galt's extended essay on the Scotland of his day.
In Mass Hysteria: Medicine, Culture, and Mothers' Bodies, Rebecca Kukla traces current conceptions of pregnancy to a late eighteenth-century split in the figuration of the maternal body into two: "an unruly, capricious, improperly and porously bounded body" and a " 'natural' body enjoying perfect unity and reciprocity with its child" (67).