Words That Rhyme With "Periodontics" :

2 syllables:

antics, quantic, wandis

3 syllables:

Atlantic's, bionics, ionics, romantics, semantics

4 syllables:

astronautics, avionics, bibliotics, eudemonics, histrionics, radionics, semiotics, thermionics

5 syllables:

antibiotics, macrobiotics

6 syllables:

microelectronics