au·to·trans·form·er 
(ô′tō-trăns-fôrmər)
(ô′tō-trăns-fôrmər)n.
An electrical transformer in which the primary and secondary coils have some or all windings in common.
- long pepper
- long-playing
- long-range
- long run
- longshore
- longshoreman
- long shot
- long-sighted
- long-sightedly
- long-sightedness
- longsome
- Longs Peak
- longspur
- long-standing
- longstanding
- Longstreet
- long-suffering
- long-sufferingly
- long suit
- long-tailed duck
- long-term
- long-term potentiation
- longtime
- long ton
- Longueuil