noun
milligram
MIH-lihg-ram
noun
1
A unit of mass equal to one thousandth of a gram, abbreviated "mg".
"The tablet contains 500 milligrams of the active ingredient."
"A grain of salt weighs roughly 60 milligrams."
How to Use Milligram
Learner’s notesIn plain EnglishA very small unit of weight — a thousandth of a gram — mostly seen on medicine labels and in science.
Common pairings
500 milligrams
milligrams per litre
a few milligrams
Word Forms
milligrams plural
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The tablet contains 500 _____ of the active ingredient.
Etymology
Borrowed from French milligramme, built from the prefix milli- ("one thousandth") plus gram.