Definition of write-protect verb from the Oxford Advanced American Dictionary

 

write-protect

 verb
verb
 
write-protect something(computing)Verb Forms present simple I / you / we / they write-protect he / she / it write-protects past simple write-protected -ing form write-protecting
 
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to protect the information on a computer disk from being changed or deleted (= destroyed)
See the Oxford Advanced Learner's Dictionary entry: write-protect