Thermedics rhymes with:
angiomedics, electromedics, isomedix, medic's, medics, paramedics, angiomedics, electromedics, isomedix, medic's, medics, paramedics
Thermedics sounds like:
taranto's, terminates, termites, thermits, thorndike, thorndike's, thorndikes, thorndyke, thurmond's, torments, tornadic, tornado's, tornadoes, tornados, toronto's, torrents, tournament's, tournaments, tournedos, traumatic, traumatize, tremendous, trends, trent's, trinity's, trintex, turnouts, tyrants