Backside Attack

The backside attack is a term used in chemistry, in nucleophilic substitution. It refers to a part in the process when a nucleophile attatches to the "back" of another atom, usually carbon in the SN2 reaction.

It is the opposite of the frontside attack, where a nucleophile attaches to the front of the atom.

Inversion occurs from backside attack when the nucleophile attacks the electrophile, the configuration of the molecule is inverted.

This term caused much merriment amongst the chemistry-studying students in my class, who are usually amused by such things.