ADVERBIAL
Meaning of ADVERBIAL in English
ad ‧ ver ‧ bi ‧ al /ədˈvɜːbiəl $ -ɜːr-/ BrE AmE adjective technical
used as an adverb:
an adverbial phrase
—adverbial noun [countable]
Longman Dictionary of Contemporary English.
Longman - Словарь современного английского языка.
2012