protocol

Pronunciation

• (US) IPA ^(key): /ˈproʊtəˌkɑl/ or /ˈproʊtəˌkɔl/ or /ˈproʊtəˌkoʊl/
• (UK) IPA ^(key): /ˈprəʊtəˌkɒl/

• Audio (UK)

  (file)

• Audio (US)

  (file)

• Hyphenation: pro‧to‧col

Noun

Singular protocol

Plural protocols

1. (countable) A protocol is a rule, guideline, or document about how certain activities are done.

   I don't know the protocol for talking to the President.

2. (countable) A protocol is a set of rules that describes how data is transmitted.

   To get the domain name from the domain name server, the other computer has to send the right protocol.