1. adjective /maɪnə/
a) Of little significance or importance.
There is now such an immense "microliterature" on hepatics that, beyond a certain point I have given up trying to integrate (and evaluate) every minor paper published—especially narrowly floristic papers.
2. noun /maɪnə/
a) A person who is below the legal age of responsibility or accountability.
b) A subject area of secondary concentration of a student at a college or university, or the student who has chosen such a secondary concentration.
3. verb /maɪnə/
Wikipedia foundation.