Personal Blogs

Aperture          Term also used in fencing
Concave          Fraudulent grotto
Convex            Persons sentenced for crimes, as in
                        "The convex were transported to Botany Bay".
Dispersion       Show disrespect toward long-haired cat
Focal               Outspoken
Optics              Surgeon's "To do" list
Parallax           Lower limbs of biped
Prism               Place where convex are incarcerated
Ray                  Half-hearted cheer
Varifocal           Extremely outspoken