Definition of roto-tom in English:

roto-tom

noun

  • A small drum with no shell, which can be tuned within a range of about an octave by rotating the head, and which is often mounted on a rack as part of a set.

Origin

1960s; earliest use found in Billboard. From roto- + -tom.

Pronunciation

roto-tom

/ˈrəʊtə(ʊ)ˌtɒm/