wimp

Multiple Entries:
  wimp    WIMP  

Concise Oxford English Dictionary © 2008 Oxford University Press:
wimp /wɪmp/ informal

▶noun a weak and cowardly person. ▶verb (wimp out) withdraw from something in a cowardly way.

– derivatives
wimpish adjective,
wimpishly adverb,
wimpishness noun,
wimpy adjective (wimpier, wimpiest).

– origin 1920s: origin uncertain, perh. from whimper.

Concise Oxford English Dictionary © 2008 Oxford University Press:
WIMP1

▶noun Computing a set of software features and hardware devices designed to simplify or demystify computing operations for the user.

– origin 1980s: acronym from windows, icons, mice, and pull-down menus (or pointers).

Concise Oxford English Dictionary © 2008 Oxford University Press:
WIMP2

▶noun Physics a hypothetical heavy subatomic particle postulated as a constituent of dark matter.

– origin 1980s: acronym from weakly interacting massive particle.