MCP

1. abbreviationinitialismnot comparableanatomyInitialism of metacarpophalangeal.

plural MCPs

1. abbreviationcountabledatedinitialismuncountableInitialism of male chauvinist pig.

   If that makes him sound like a male chauvinist, well, he appeared at a recent conference in Houston wearing a tie emblazoned with boar heads and the monogram MCP.

   1976 January 23, Nicholas Wade, “Edward Goldsmith: Blueprint for a De-industrialized Society”, in Science, volume 191, number 4224, →JSTOR, page 270

   1 more example

   Bottom line, an MCP was a guy who put more value on men than he did on women. Paradoxically, some MCPs put their women up on a pedestal—a statue of his fantasy—and that's where their women were supposed to stay.

   2012 May 1, Kate Bornstein, A Queer and Pleasant Danger, Boston: Beacon Press, →ISBN

2. abbreviationcountableinitialismuncountablebiologyInitialism of membrane cofactor protein.
3. abbreviationcountableinitialismuncountablemachine learningInitialism of memory-context processing.

1. abbreviationhistoricalinitialismcomputingInitialism of Microsoft Certified Professional, former certification program.
2. abbreviationhistoricalinitialismMalaysian politics; Singaporean politics; Malaysian politics; Singaporean politicsInitialism of Malayan Communist Party.

   Synonyms: CPM, PKM

3. abbreviationinitialismartificial intelligenceInitialism of Model Context Protocol, an open protocol that allows AI agents to cooperate.

   MCP, or Model Context Protocol, began as a passion project from two Anthropic employees, but since its creation in mid-2024, it’s been widely adopted by companies like OpenAI, Google, Microsoft, and Cursor. There are even hints that Apple will use MCP in its forthcoming AI-enabled version of Siri.

   2025 December 10, Hayden Field, “AI companies want a new internet — and they think they’ve found the key. MCP has already taken the industry by storm, and now Anthropic is giving it away”, in The Verge