pi·co·gram 
(pēkə-grăm′, pī-)
(pēkə-grăm′, pī-)n.
One trillionth (10-12) of a gram.
- conversion disorder
- conversion factor
- conversion reaction
- Converso
- convert
- convertaplane
- convertaplane
- converted rice
- converter
- convertibility
- convertible
- convertible security
- convertibly
- convertiplane
- convertor
- convertor
- convex
- convexity
- convexly
- convexo-concave
- convexo-convex
- convey
- conveyable
- conveyance
- conveyancer