toggle menu
1000+ books


used in a sentence
(click/touch triangles for details)
Definition allowing passage through a barrier
The barrier can be physical or figurative — such as:
  • a membrane, asphalt or other material that is full of tiny holes that permit penetration by a fluid or gas
  • a border or other barrier that is not effective (for example, permitting illegal crossing)
  • an ineffective sports defense
  • a law or other rule that is full of loopholes
  • the partly porous walls of our digestive system
porous = allowing passage through a barrier
  • compacting the soil to make it less porous
  • our unfenced and largely unpoliced borders have proven porous
  • It's against the rules, but the regulations are porous.
  • His father peeled him away gradually, like a porous plaster.
    O. Henry  --  The Ransom of Red Chief
  • His skin was as porous as an orange rind and the elements had darkened it to resemble a fine old piece of furniture.
    Roger Zelazny  --  Nine Princes in Amber
  • When it came to containing gossip, no walls in the world were as porous as those surrounding Vatican City.
    Dan Brown  --  The Da Vinci Code
  • But the frame was the original porous stone used to build the manor.
    Eoin Colfer  --  Artemis Fowl
  • The entire island seemed porous with hydrium.
    Kenneth Oppel  --  Airborn
  • Their bones are extremely light and porous, filled with tiny air pockets.
    James Patterson  --  Saving the World and Other Extreme Sports
  • He could feel the shock wave of the bullets as they sailed beneath him and pulverized the porous travertine behind.
    Dan Brown  --  Angels & Demons
  • I feel I even walk like that: crouched over, my spine constricting to a question mark, my bones leached of calcium and porous as limestone.
    Margaret Atwood  --  The Handmaid's Tale
  • The captain nodded, and the chaplain gazed at his porous gray pallor of fatigue and malnutrition with a mixture of pity and esteem.
    Joseph Heller  --  Catch-22
  • Our bones are made porous.
    Joy Kogawa  --  Obasan
  • He moved to the end of the veranda to refill the heavy, porous clay water-jug from the filter.
    Rudyard Kipling  --  Kim
  • There was no trail at all, and we picked our way between and over the rumpled slabs of porous black rock.
    Megan Whalen Turner  --  The Thief
  • His nose was as porous and dark as volcanic rock.
    John Gardner  --  Grendel
  • Carl fingered the blue-green leaves, porous like blotting-paper and shaped like birch leaves, hung on waxen red stems.
    Willa Cather  --  O Pioneers!
  • The surface of the snowpack began to thaw, turn porous and slushy.
    Thomas Mann  --  The Magic Mountain
  • Figuratively I could snapshot what I mean by some image; I am a porous vessel afloat on sensation; a sensitive plate exposed to invisible rays; and so on.
    Virginia Woolf  --  A Sketch of the Past

Dictionary / pronunciation — Google®Dictionary list —®
Search for other examples by interest
General — Google News®
General — Time® Magazine
General — Wikipedia®
Architecture — Google® books - Architecture
Business — Bloomberg®
Business — The Economist®
Classic Literature — Google® books - Classical Literature
Engineering — Google® books - Engineering
Engineering — Popular Mechanics®
Engineering — Discover Magazine®
Fine Arts & Music — Google® books - Art
History — Google® books - History
Human Behavior — Google® books - Psychology
Human Behavior — Psychology Today®
Law — FindLaw®
Law — Google® books - Law
Logic & Reasoning — Google® books - Reasoning
Medicine — Web MD®
Medicine — Google® books - Medicine
Nature & Ecology — National Geographic®
Nature & Ecology — Google® books - Nature
Personal Finance — Kiplinger® (Personal Finance)
Philosophy — Google® books - Philosophy
Public Policy & Politics — Newsweek®
Public Policy & Politics — Real Clear Politics®
Public Policy & Politics — Google® books - Politics
Religion & Spirtuality — Google® books - Religion
Religion - Christianity — Bible Gateway®
Religion - Christianity — Google® books - Christianity
Science — Popular Science®
Science — Scientific American®
Science — Google® books - Science
Sports — Sports Illustrated®