According to Guinness World Records, the largest collection of coffee pots belongs to Robert Dahl (Germany) and consists of 27,390 coffee pots as of 2 November 2012, in Rövershagen, Germany.
SEMIGROUP
Etymology
Noun
semigroup (plural semigroups)
(mathematics) Any set for which there is a binary operation that is closed and associative.
Hypernyms
• (set for which a closed associative binary operation is defined): magma
Hyponyms
• (set for which a closed associative binary operation is defined): group, monoid
Source: Wiktionary
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27 May 2025
DIRECTIONALITY
(noun) the property of being directional or maintaining a direction; “the directionality of written English is from left to right”
Coffee Trivia
