As nouns the difference between terms and underdot
is that terms is while underdot is a dot (the diacritical mark) placed below any of a number of letters of the latin script, used in various languages.
terms
English
Noun
(head)
Statistics
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underdot
English
Noun
(
en noun)
A dot (the diacritical mark) placed below any of a number of letters of the Latin script, used in various languages.