We don't have any synonyms for cidr yet.
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Definition of cidr:
(n) :
Acronym of Classless Inter-Domain Routing, normally an IP address notation such as 192.168.1.0/24 indicating a block of addresses; the number after the slash indicates how many bits are in the mask; bits to the right are not masked.
(n) :
Initialism of controlled internal drug release (“technology for the controlled release of a hormone or drug, for example to release progesterone in beef cattle”).