(rail transport) The outline of the space occupied by a rail vehicle when in motion, including the effects of tilt, sway, track cant, etc.

One whose job is to manually insert sheets of printed paper into envelopes for mailing, especially as an example of a person whose work is menial and unfulfilling.

Alternative form of envelope stuffer

plural of red envelope

(virology) A coating covering the capsid of a virus.

plural of flight envelope

An aircraft's design capabilities in terms of airspeed, altitude, etc.

plural of kinematic envelope

plural of viral envelope

(mathematics, optimisation theory, of a function on a set) For a given set S⊆ℝⁿ and real-valued function f defined on the convex hull conv(S), the lowest-valued concave function that overestimates or equals f over S.