MMD may refer to:
==Science and technology== Molar mass distribution, in a polymer MultiMarkdown, a markup language Multiple dispatch, a feature of some programming languages MMD, a loudspeaker parameter of the Thiele/Small model equivalent MDIO Manageable Devices, target devices that are being managed by the Management Data Clock in Management Data Input/Output (MDIO) Mass median diameter, in particle-size distribution
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).