fluor·ine 
(flrēn′, -ĭn, flôr-)
(flrēn′, -ĭn, flôr-)n. Symbol F
A pale-yellow, highly corrosive, poisonous, gaseous halogen element, the most electronegative and most reactive of all the elements, existing as a diatomic gas (F2) and used in a wide variety of industrially important compounds. Atomic number 9; atomic weight 18.9984; melting point -219.67°C; boiling point -188.12°C; specific gravity of liquid 1.50 (at boiling point); valence 1. See Periodic Table.
- microgamete
- microgametophyte
- microglia
- microglial
- microglossia
- microgram
- micrograph
- micrographic
- microgravity
- microgreens
- microhabitat
- microinject
- microinjection
- microinstruction
- microlending
- microlith
- microlithic
- microloan
- micromachine
- micromanage
- micromanipulation
- micromanipulative
- micromanipulator
- micromere
- micrometeorite