(countable, slang) A dog of miscellaneous ancestry; a mutt. / (uncountable, poker) A variety of draw poker in which 5s and 7s are wild cards.

(of a thing) Being a complete mix; containing parts of many different origins. / (informal, of a person or animal, chiefly a dog) Having ancestry of many different origins; to be of mixed race or breed.

(physics) The only stable isotope of manganese, ⁵⁵₂₅Mn, having 25 protons and 30 neutrons

(physics) The major stable isotope of chromium, ⁵²₂₄Cr, having 24 protons and 28 neutrons; it amounts to about 84% of the element in nature

(physics) A minor stable isotope of chromium, ⁵³₂₄Cr, having 24 protons and 29 neutrons; it amounts to about 9% of the element in nature

(physics) A minor stable isotope of chromium, ⁵⁴₂₄Cr, having 24 protons and 30 neutrons; it amounts to about 2% of the element in nature

(fandom slang) The fictional universe of DC Comics after the conclusion of Infinite Crisis, as shown in the 52 comic book series.

(metallurgy) 5160; Ellipsis of 5160 steel.

plural of 527

(Internet slang) Censored spelling of ass.