sub·​mi·​cro·​gram ˌsəb-ˈmī-krə-ˌgram How to pronounce submicrogram (audio)
: relating to or having a mass of less than one microgram
submicrogram quantities of a chemical

Word History

First Known Use

1941, in the meaning defined above

Time Traveler
The first known use of submicrogram was in 1941

Dictionary Entries Near submicrogram

Cite this Entry

“Submicrogram.” Dictionary, Merriam-Webster, Accessed 30 May. 2024.

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