A flying insect of the order Lepidoptera, distinguished from moths by their diurnal activity and generally brighter colouring.
A sensation of excited anxiety felt in the stomach.
The butterfly stroke.
A type of stretch in which one sits on the ground with the legs folded into a shape like that of a butterfly's wings, slightly rocking them up and down, resembling the wings fluttering.
A use of surgical tape, cut into thin strips and placed across an open wound to hold it closed.
A person who changes partners frequently.
Any of several plane curves that look like a butterfly; see Butterfly curve (transcendental) and Butterfly curve (algebraic).
A combination of four options of the same type at three strike prices giving limited profit and limited risk.
A random change in an aspect of the timeline seemingly unrelated to the primary point of divergence, resulting from the butterfly effect.
To cause events after the point of divergence to not happen as they did in real history, and people conceived after the point of divergence to not exist in recognizable form, due to the random variations introduced by the butterfly effect.
To cut (food) almost entirely in half and spread the halves apart, in a shape suggesting the wings of a butterfly.
To cut strips of surgical tape or plasters into thin strips, and place across (a gaping wound) to close it.
Any of various other similar beetles, such as of the genera Acrossidius, Cyphochilus, Rhopaea, etc.
Any of the large European beetles from the genus Melolontha that are destructive to vegetation.