Also found in: Thesaurus.


Impenetrable by light: film stored in lightproof containers.
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.


impenetrable by light
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014



impervious to light.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.lightproof - not penetrable by light; "lightproof containers"
opaque - not transmitting or reflecting light or radiant energy; impenetrable to sight; "opaque windows of the jail"; "opaque to X-rays"
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
To lightproof the bedroom, "blackout window treatments are a must," said Greg Roth, a designer at Home Front Build in Los Angeles, by email.
To restore and preserve the manuscripts, the ministry has a library, which is lightproof and temperature controlled.
All of the samples were preserved in a cold storage covered with lightproof packaging before analysis.
Before analysis, the samples were preserved in cold and dry storage with lightproof packaging.
Lightproof packaging material as for example composites with UV barrier or colored glass help with light-sensitive goods.
During the evenings, the group developed the pictures they had taken during the day using a lightproof container, developing chemicals and a wash basin.
Any archer can whack pronghorns at close range, if that person has the gumption to erect a commercial blind or dig a pit and cover it with tarpaper, cardboard, poly tarps, or any other lightproof material.
The commercially available products vary in quality--fish oil capsules are easily oxidised by light or moisture so premium products tend to be opaque capsules in individual blisters within a lightproof box or jar--a good guide for consumers.
For actin staining, samples were stained with Alexa488-phalloidin (Molecular Probes, Eugene, OR) prepared in PBS containing 1% (v/v) bovine serum albumin for 1 h at room temperature in a lightproof box.
They were immediately placed in a lightproof insulated box containing icepacks to ensure rapid cooling.
"Colour-fast and lightproof, odourless and eco-friendly, the classic ingrain wallpaper has arrived in the new dimension of high-quality and modern photo wallpaper," Heiko Wiederer, product manager of Onlineprinters GmbH is pleased about the online print shop's new product.