- The act of inserting, or something inserted.
- (anatomy) The distal end of attachment of a muscle to a bone that will be moved by the muscle.
- (genetics) The addition of a nucleotide to a chromosome by mutation.
- With a nuclear bomb, the process of going from subcritical to prompt critical.
act of inserting, or something inserted
addition of a nucleotide to a chromosome
insertion f (plural insertions)