As nouns the difference between terms and duller
is that terms is while duller is one who, or that which, dulls.
As an adjective duller is
(dull).
terms
English
Noun
(head)
Statistics
*
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duller
English
Adjective
(head)
(dull)
Noun
(
en noun)
One who, or that which, dulls.
* Beaumont and Fletcher
- But, of all, your grace must fly phlebotomy, fresh pork, conger, and clarified whey: they are all dullers of the vital spirits.