The condition that prevails when the numerical aperture of an optical source, such as a laser, light-emitting diode, or optical fiber, exceeds that of the driven element, e.g., optical fiber core. The condition that prevails when the beam diameter of an optical source, such as a laser, light-emitting diode, or optical fiber, exceeds that of the driven element, e.g., optical fiber core.

In telecommunications, overfill is the condition that prevails when the numerical aperture or the beam diameter of an optical source, such as a laser, light-emitting diode, or optical fiber, exceeds that of the driven element, e.g. an optical fiber core. In optical communications testing, overfill in both numerical aperture and mean diameter (core diameter or spot size) is usually required. In polygonal mirror scanners, an overfilled type is one which uses each mirror facet at least in one dimension completely.

To fill to excess; to surcharge.

fill beyond capacity; "overfill the baskets"

For the purposes of this guidance, the excess of theoretical deliverable volume or weight of the drug product formulation that ensures (1) transfer of the dose of drug product declared in the labeling (unit dose) or (2) delivery of the number of dosage units declared in the labeling (multiple-dose).