As a noun terms
is .
As a verb underburnt is
(underburn).
terms
English
Noun
(head)
Statistics
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underburnt
English
Verb
(head)
(underburn)
underburn
English
Verb
(obsolete) To burn up.
To burn too little.
Noun
(
en noun)
The deliberate burning of surface fuel so as to leave the tree canopy intact.