castellated nut
Word Rarity
Very rare
Frequency: Zipf frequency 1.78 in modern English
17
Scrabble Score
14
Letters
3
Syllables
9
Unique Chars
Meaning
noun
A type of nut (internally threaded fastener) with castellations, typically to hold a retaining pin that is passed through a cross-drilled hole, such as a cotter pin.
Etymology
Physically descriptive via a metaphor; called thus because the slots in the nut — the castellations — have a fancied resemblance to the battlements of a castle.