coalescing

verb

1. (form-of, gerund, participle, present)present participle and gerund of coalesce

noun

1. coalescence

   “We attribute such coalescings of eigenvalues to the presence of a finite barrier (on the either side of #92;text#123;x#61;0#125; ) which has been linked to a recent study of stokes phenomenon in the complex PT-symmetric potentials..”