con·vex·o-con·vex 
(kən-vĕk′sō-kən-vĕks)
(kən-vĕk′sō-kən-vĕks)adj.
Convex on both sides; biconvex. Used of a lens.
- phenix
- pheno-
- phenobarbital
- phenobarbitone
- phenocopy
- phenocryst
- phenocrystic
- phenol
- phenolate
- phenolic
- phenological
- phenologically
- phenologist
- phenology
- phenolphthalein
- phenol red
- phenom
- phenomena
- phenomenal
- phenomenalism
- phenomenalist
- phenomenalistic
- phenomenalistically
- phenomenally
- phenomenological