bi·nal 
(bīnəl)
(bīnəl)adj.
Twofold; double.
[New Latin bīnālis, twin, from Latin bīnī, two by two; see dwo- in the Appendix of Indo-European roots.]
- light-mindedness
- lightness
- lightness
- lightning
- lightning arrester
- lightning bug
- lightning chess
- lightning rod
- light opera
- light out
- light pen
- light plane
- lightplane
- light pollution
- lightproof
- light rail
- light-rail
- light reaction
- light reflex
- lights
- light sail
- lightship
- light show
- lightsome
- lightsome