— terbic , adj.
/terr"bee euhm/ , n. Chem.
a rare-earth, metallic element present in certain minerals and yielding colorless salts. Symbol: Tb; at. no.: 65; at. wt.: 158.924; sp. gr.: 8.25.
[ 1835-45; ( Yt ) terb ( y ), name of Swedish town where found + -IUM. See YTTERBIUM ]