Cidr

//ˈsaɪ.dɚ// name, noun

name, noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    Initialism of controlled internal drug release (“technology for the controlled release of a hormone or drug, for example to release progesterone in beef cattle”). abbreviation, alt-of, initialism
Proper Noun
  1. 1
    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. abbreviation, acronym, alt-of

    "192.168.1.35 and 192.168.1.252 are both valid addresses in the CIDR block 192.168.1.0/24, but 192.168.2.35 is not."

Example

More examples

"192.168.1.35 and 192.168.1.252 are both valid addresses in the CIDR block 192.168.1.0/24, but 192.168.2.35 is not."

Related phrases

ip address

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.