Word.ws English Dictionary

semilattice

semilattice noun: 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). Equivalently, an underlying set which has a binary operation which is associative, commutative, and idempotent.

Noun

semilattice (plural semilattices)

  1. 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). Equivalently, an underlying set which has a binary operation which is associative, commutative, and idempotent.

Forms of semilattice

pluralsemilattices

Origin of semilattice

From semi- + lattice.

Questions about semilattice

What does semilattice mean?
Semilattice means 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). Equivalently, an underlying set which has a binary operation which is associative, commutative, and idempotent.
What part of speech is semilattice?
Semilattice is a noun.
What is the plural of semilattice?
The plural of semilattice is semilattices.

Words near semilattice in the dictionary

  1. semilanguage
  2. semilanguages
  3. semilapsed
  4. semilatent
  5. semilateral
  6. semilattice
  7. semilattices
  8. semileafless
  9. semilegal
  10. semilegally
  11. semilegendary

Source and license

Adapted from Wiktionary: semilattice (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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