supergrade

Fetched 2026-10-26 (cache).

Synonyms: supertrace, supergrand, supergrass, superframe, superrace, supergraph, supergrid

Antonyms: supertrace, supergrand, supergrass, superframe, superrace, supergraph, supergrid

Related words from Datamuse; suggestions, not definitions.

Adjective

1. Of [[plutonium]]: containing a very small portion of isotopes other than plutonium-239 (especially plutonium-240) (less than perhaps 3%), making the plutonium especially suitable for [[nuclear weapons]]

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