Webster's 1828 Dictionary
RETURNING
ppr. Giving, carrying or sending back; coming or going back; making report.
RETURNING-OFFICER
n.The officer whose duty it is to make returns of writs, precepts, juries, etc.
New American Oxford Dictionary
returning officer
re turn ing of fi cer |rəˈtərnɪŋ ˌɔfəsər | ▶noun (in the UK, Canada, New Zealand, and Australia ) the official in each constituency or electorate who conducts an election and announces the result.
Oxford Dictionary
returning officer
re ¦turn |ing of ¦fi |cer ▶noun (in the UK, Canada, Australia, and New Zealand ) the official in each constituency or electorate who conducts an election and announces the result.