re·frac·tom·e·ter 
(rē′frăk-tŏmĭ-tər)
(rē′frăk-tŏmĭ-tər)n.
Any of several instruments used to measure the index of refraction of a substance.
- give gimme five
- give ground
- give in
- give it to
- give/lendan ear
- give me five
- give me/gimme five
- given
- Givenchy
- given name
- give of
- give off
- give or take
- give out
- give over
- giver
- give rise to
- give (someone) a hard time
- give someone a hard time
- give someone a piece of mind
- give (someone) a piece of (one's) mind
- give someone a piece of one's mind
- give someone some slack
- give (someone) the eye
- give someone the eye