A fuse for an explosive.
A colored flare used as a warning on the railroad.
A light musket or firelock.
A large friction match.
One who, or that which, fuses or is fused; an individual component of a fusion.
A conical, grooved pulley in early clocks, antique watches, and possibly all non-electronic marine chronometers.
With a nuclear bomb, the process of going from subcritical to prompt critical.
The distal end of attachment of a muscle to a bone that will be moved by the muscle.
The act of inserting, or something inserted.
The addition of a nucleotide to a chromosome by mutation.