As nouns the difference between guttae and mutule
is that guttae is while mutule is (architecture) the rectangular blocks under the soffit of the cornice of the greek doric temple, which is studded with guttae.
guttae
English
Noun
(head)
----
mutule
English
Noun
(
en noun)
(architecture) The rectangular blocks under the soffit of the cornice of the Greek Doric temple, which is studded with guttae.