Definition of rhe in US English:

rhe

noun

Physics
  • A unit of dynamic fluidity in the cgs system, defined variously as the reciprocal of the poise or the centipoise. Also: a unit of kinematic fluidity in the cgs system, defined as the reciprocal of the centistokes (rare).

Origin

1920s; earliest use found in Science. From ancient Greek ῥέος stream: see quot. 1924.

Pronunciation

rhe

/riː/