Technical term in computing for a data structure or identifier that describes or categorizes something, such as a file descriptor or security descriptor.
Manipulate files using file descriptors.
A security descriptor contains access control information.
entity descriptor
descriptor elements
file descriptor
traffic descriptor
metafile descriptor; MD
object descriptor type
Compound of 記述 (description) + 子 (element, child), likely a calque from English 'descriptor' in computing contexts.