Yes Hebrew is a very concise and precise language.

tan
tan

from an unused root probably meaning to elongate; a monster (as preternaturally formed), i.e. a sea-serpent (or other huge marine animal); also a jackal (or other hideous land animal): - dragon, whale. Compare 'tanniyn' (8577).



Taken from ~
http://www.htmlbible.com/sacrednamebiblecom/kjvstrongs/STRHEB85.htm#S8565