Definition of Th

Noun: Th

1. A soft silvery-white tetravalent radioactive metallic element; isotope 232 is used as a power source in nuclear reactors; occurs in thorite and in monazite sands
   - thorium, atomic number 90
    
2. The fifth day of the week; the fourth working day
   - Thursday

See also:
TGIF
thack

Anagrams containing the word Th

th ht