[1] : The Collaborative International Dictionary of English v.0.48

larghetto \larghet"to\, a.  adv. it., dim. of largo largo.
   mus.
   somewhat slow or slowly, but not so slowly as largo, and
   rather more so than andante.
   1913 webster
see also:
largo andante 

[2] : WordNet (r) 2.0

larghetto
     adj : of tempo less slow and broad than largo
     n : music a composition or passage played in a slow tempo
         slightly faster than largo but slower than adagio

Larghetto >> L Words
Larghetto, definition of term: Larghetto
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