What is the name for a shape that is like a capsule, but with two different radii? I'm looking for the name of a shape that is like a capsule, but where each circle can have different radii. The shape could be described using two circles (two centers and two radii). Something like this (this is a 2D shape, not a lame attempt at 3D):
You can just say it is the convex hull of two circles.
I have 3 ideas from which you may be able use to settle upon a suitable name:

a conrod or tapered conrod (as in the big-end small-end connecting rod);

it resembles a pull tab of a zipper; and,

it also resembles the tab pull of a soda can.