• Semilattice

    Origin

    - + lattice

    Full definition of semilattice

    Noun

    semilattice

    (plural semilattices)
    1. (mathematics) A partially ordered set that either has a join (a least upper bound) for any nonempty finite subset (a join-semilattice or upper semilattice) or has a meet (or greatest lower bound) for any nonempty finite subset (a meet-semilattice or lower semilattice).
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