an intranet that is partially accessible to authorized persons outside of a company or organization.
Origin of extranet
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
computing an intranet that is modified to allow outsiders access to it, esp one belonging to a business that allows access to customers
Word Origin for extranet
C20: from extra- + net 1 (sense 8), modelled on intranet
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
An extension of an institution's intranet, enabling communication between the institution and people it deals with, often by providing limited access to its intranet.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.