⊔

See also: ⨆ [U+2A06 N-ARY SQUARE UNION OPERATOR], ∐ [U+2210 N-ARY COPRODUCT], and ⨿ [U+2A3F AMALGAMATION OR COPRODUCT]
⊔ U+2294, ⊔
SQUARE CUP
← ⊓
[U+2293] 		Mathematical Operators ⊕ →
[U+2295]

Translingual

Symbol

⊔

  1. (mathematics) disjoint union
  2. (computer science) blank symbol, used in Turing machine diagrams

Coordinate terms
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