DQD

DQD or dqd can refer to:

• Ornithorhynchidae, a family that contains the platypus and its extinct evolutionary relatives, by Catalogue of Life code
• Double Quantum Dot, a quantum device used e.g. for quantum technology
• WisdomTree U.S. Quality Dividend Growth Variably Hedged Index ETF™, a Canadian exchange-traded fund; see List of Canadian exchange-traded funds
• dqd, an operation on polyhedrons in Conway polyhedron notation

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