milligram-hour

[ mil-i-gram-ouuhr, -ou-er ]
/ ˈmɪl ɪˌgræmˌaʊər, -ˌaʊ ər /

noun Radiotherapy.

a unit of measure for a dose of radium expressed as the amount of radiation received by exposure to one milligram of radium for one hour.

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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020