semigrand

/S EH1 M AH0 G R AH0 N D/
adjective
  1. 1

    (music) Of a piano: having a size intermediate between grand and baby grand.

  2. 2

    (physics) Pertaining to a distribution of species that holds the number of particles, pressure, and temperature fixed but allows mole fractions of species within a phase to fluctuate.