There are 15 words that start with 'microg'.
| microgram | micrograms |
| micrograph | microgamete |
| micrographs | microgroove |
| microgametes | micrographed |
| micrographic | microgravity |
| microgrooves | micrographics |
| micrographing | microgravities |
| microgametocyte | |
Note: These 15 words that start with 'microg' are found from the USA & Canada version of the tournament Scrabble word list.