Noun
mandobass (plural mandobasses)
A type of mandolin used to play bass.
A smaller scale four-string mandobass, usually tuned in fifths—G1-D2-A2-E2 (two octaves below the mandolin), though not as resonant as the larger instrument, was often preferred by players as easier to handle and more portable. Source: Internet
The relatively rare eight-string mandobass, or tremolo-bass also exists, with double courses like the rest of the mandolin family, and is tuned either G1-D2-A2-E3, two octaves lower than the mandolin, or C1-G1-D2-A2, two octaves below the mandola. Source: Internet