Computer Science Capable of recording data. Used of a storage medium: writable compact disks. (adjective)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "writable" in a sentence
"Floppies died because superior portable storage media came out - namely writable CDs."
"A Heavy attack will additionally search for several other known vulnerabilities, such as writable anonymous ftp directories or trusted hosts."
"You have to make the mount point directory 'writable'."