abbr. Natural Scientist.
1) A person who has dedicated his/her life to the pursuit of knowledge they do not need, as they haven't decided what they really want out of life.
2) Someone with nothing better to do on a Saturday.
3) A consumer of large quantities of Pot Noodle, and Curry.
4) A most interesting person, full of delightful facts and useful bits of information.... unless you are mentally stable.
5) Usually found in hoardes. Good target practice.
6) Marginally more interesting than rocks.
7) Knows plenty of big words, and enjoys using them to insult people without them realising.
"Look, a natsci! I've never seen one outside before... try not to make eye contact!"