b. symmetric difference the set of associates of one although not both equally with the given sets. Normally symbolized: A + B dermal ectodermal endodermal epidermal epithermal geothermal hydrothermal intradermal isothermal mesodermal photothermal electrothermal See All Rhymes for thermal Use spell Verify resources, but don’t count on them. Try https://mpi-thermal.com/blog/thermal-shock-vs-thermal-cycling-test/