FERMI
10
Scrabble
11
WWF
F(4) E(1) R(1) M(3) I(1)
NWL/TWL ✓ Collins ✓ WWF ✓
Definition
noun
- An obsolete unit of length equal to one femtometer or femtometre (10−15 m).
Source: Wiktionary
Hooks
Back hooks: FERMI-S