supplemental

Of the nature of a supplement; serving to supplement; additional; added to supply what is wanted.

Added to supply what is wanted; additional; being, or serving as, a supplement.

the air which in addition to the residual air remains in the lungs after ordinary expiration, but which, unlike the residual air, can be expelled; reserve air.

a bill filed in aid of an original bill to supply some deffect in the latter, or to set forth new facts which can not be done by amendment.

in an ellipse or hyperbola, any two chords drawn through the extremities of a diameter, and intersecting on the curve.

Acting to supplement.

Appending.

Lacking a regular schedule (as in a supplemental airline).

Something that supplements or adds to.

A requisition or article of legislation that provides additional funding for a program.