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Related to Transmissivity: Hydraulic conductivity
The ratio of the transmitted radiation to the radiation arriving perpendicular to the boundary between two mediums.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
The fraction of light that passes through the interior of a glass pane at normal incidence in one traversal. This does not consider light lost to reflection by the front or back surface, or multiple internal reflections.
Illustrated Dictionary of Architecture Copyright © 2012, 2002, 1998 by The McGraw-Hill Companies, Inc. All rights reserved
The capacity of a material to transmit radiant energy.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.