halfhourly
[ haf-ouuhr-lee, -ou-er-, hahf- ]
adjective
occurring every half-hour: a halfhourly interruption.
adverb
at half-hour intervals: The bell rang halfhourly.
Origin of halfhourly
1Words Nearby halfhourly
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
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