interfirst

Between the members of the first pair of specified things (such as premolars or molars).

Adjective

  1. Between the members of the first pair of specified things (such as premolars or molars).
    • Further corroborating these findings, Vajaria el al 11 also found expansion in interfirst premolar distances. - 2015, Marcio Rodrigues de Almeida et al., “Dentoalveolar mandibular changes with self-ligating versus...

Origin

From inter- + first. A recent coinage; see usage notes.