What is the meaning of Fermi?

An obsolete name of the unit of length equal to one femtometre (10 m).

fermium

inflection of fermar:

1. first/third-person singular present subjunctive
2. third-person singular imperative

first/third-person singular present subjunctive

third-person singular imperative

to close, to shut

fermi

masculine plural of fermo

plural of fermo

inflection of fermare:

1. second-person singular present indicative
2. first/second/third-person singular present subjunctive
3. third-person singular imperative

second-person singular present indicative

first/second/third-person singular present subjunctive

third-person singular imperative

Source: wiktionary.org