Words That Rhyme With "Fossilist" :

3 syllables:

homilist

4 syllables:

ammophilous, anthophilous, coprophilous, dendrophilous, geophilous, hemophilus, hydrophilous, tropophilous, xerophilous

5 syllables:

acidophilus, anemophilous, entomophilous, malacophilous, myrmecophilous