rattleback

Fetched 2026-10-26 (cache).

Synonyms: rattlebag

Antonyms: rattlebag

Related words from Datamuse; suggestions, not definitions.

Noun

1. A form of [[spinning top]] that will [[spin]] preferentially in one direction (rattling, then reversing, if spun in the other direction).

Source: Wiktionary · CC BY-SA 4.0 (Wiktionary dump) · cached copy, not a rewrite.