lens (suomeksi)

linssi (s: object focusing or defocusing the light passing through it / geometry: convex shape bounded by two circular arcs / biology: genus of the legume family; its bean / anatomy: transparent crystalline structure in the eye)
objektiivi (s)
mykiö (s: anatomy: transparent crystalline structure in the eye)
poikkeutuskela (s: device which focuses or defocuses electron beams)