dictionary help| axis, principal | medical dictionary |
<microscopy> A line conceived as passing through the centre of a lens to connect the centres of curvature of the lens surfaces. The focal points of a lens lie on the principal axis.
(05 Aug 1998)
axis, optic, axis, optical, axis opticus, axis pelvis < Prev | Next > axis shift, axis traction, axis-traction forceps
Bookmark with:      | word visualiser | Go and visit our forums  |
