(computing, formal) petabyte (1,000 terabytes or 10¹⁵ bytes). / (computing, informal) pebibyte (2¹⁰ (1024) tebibytes or 2⁵⁰ (1024⁵) bytes).

(mineralogy) A dark waxy mineral, found associated with petroleum in some sandstones, used to make polishes.

mottled duck

A surname.