
1) Old name for beryllium
Found on
https://www.crosswordclues.com/clue/glucinum

• (n.) A rare metallic element, of a silver white color, and low specific gravity (2.1), resembling magnesium. It never occurs naturally in the free state, but is always combined, usually with silica or alumina, or both; as in the minerals phenacite, chrysoberyl, beryl or emerald, euclase, and danalite. It was named from its oxide glucina, whi...
Found on
http://thinkexist.com/dictionary/meaning/glucinum/

<chemistry> A rare metallic element, of a silver white colour, and low specific gravity (2.1), resembling magnesium. It never occurs naturally in the free state, but is always combined, usually with silica or alumina, or both; as in the minerals phenacite, chrysoberyl, beryl or emerald, euclase, and danalite. It was named from its oxide gluci...
Found on
http://www.encyclo.co.uk/local/20973
Glu·ci'num noun [ Confer French
glucinium ,
glycium , from Greek ..., sweet. Confer
Glycerin .]
(Chemistry) A rare metallic element, of a silver white color, and low specific gravity (2.1), resembling magnesium. It never occurs naturally in the free state, but is always comb...
Found on
http://www.encyclo.co.uk/webster/G/36

Glucinum is an old name for Beryllium.
Found on
http://www.probertencyclopaedia.com/browse/GG.HTM

Beryllium
Found on
http://www.translationdirectory.com/glossaries/glossary075.htm

(formerly) beryllium. Symbol: Gl
Found on
https://www.infoplease.com/dictionary/glucinum
No exact match found.