This definition comes from the technical glossary.
A Bitcoin payment address comprising a hashed public key, allowing the spender to create a standard pubkey script that Pays To PubKey Hash (P2PKH).
P2PK output (an output paying a public key directly)
P2SH address, P2SH output (an address comprising a hashed script, and its corresponding output)
P2PKH — Bitcoin.org Developer Guide
P2PKH versus P2PK — Bitcoin StackExchange
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