Words · Familiar
boron
/ˈbɔˌɹɑn/ · 5 letters · 4 distinct letters
- noun
a trivalent metalloid element; occurs both in a hard black crystal and in the form of a yellow or brown powder
Words · Familiar
/ˈbɔˌɹɑn/ · 5 letters · 4 distinct letters
a trivalent metalloid element; occurs both in a hard black crystal and in the form of a yellow or brown powder