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# microgram

noun (a microgram, micrograms)

«microgram» in the English dictionary: everyday — its meanings, how the lessons use it, and examples, each with its tree on Mova.

## Everyday

A unit of mass equal to one millionth of a gram; its symbol is µg (sometimes mcg on medicine labels). [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/M/microgram/#m1)

### In the lessons

In science and on vitamin or medicine labels, micrograms measure very tiny amounts, such as vitamin D or vitamin B12. In maths, conversions: 1 gram = 1000 milligrams = 1 000 000 micrograms; 1 milligram = 1000 micrograms. Phrases: «micrograms of vitamin D», «per microgram», «µg».

### Examples

- The vitamin tablet has 10 micrograms of vitamin D. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/M/microgram/#x1)
- One milligram equals one thousand micrograms. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/M/microgram/#x2)
- A grain of sand weighs much more than a microgram. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/M/microgram/#x3)
- The label says «400 µg of folic acid». [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/M/microgram/#x4)
- Scientists measure tiny amounts of poison in micrograms. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/M/microgram/#x5)
- How many micrograms are in half a milligram? Five hundred. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/M/microgram/#x6)
- Medicine doses in micrograms must be measured very carefully. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/M/microgram/#x7)

### Note

Plural «micrograms». Symbol µg (µ is the Greek letter mu) or «mcg». Maths: micro = one millionth; to change grams to micrograms multiply by 1 000 000; milligrams to micrograms multiply by 1000. Trap: do not mix up mg (milligram) and µg (microgram) — a microgram is 1000 times smaller. Safety: only adults should give medicines.

## On Mova

- [Trees and pragmatics of «microgram» in the school dictionary](https://mova.elamur.ai/free/en/corpora/dictionaries/school/M/microgram/): every meaning and example parsed by Mova, with its dependency tree and frames.
- [«microgram» in the school dictionary](https://mova.elamur.ai/free/en/dictionaries/school/w/microgram.html) on Mova free.