1. 
   Thorn-headed
   Thorn'-head`ed adjective Having a head armed with thorns or spines. Thorn-headed worm (Zoology) , any worm of the order Acanthocephala; -- called also thornhead .
   Found op http://www.encyclo.co.uk/webster/T/47
   
   
2. 
   thorn-headed
   Having a head armed with thorns or spines. ... <zoology> Thorn-headed worm, any worm of the order Acanthocephala. ... Synonym: thornhead. ... Source: Websters Dictionary ... (01 Mar 1998) ...
   Found op http://www.mondofacto.com/facts/dictionary?thorn-headed
   
   
3. 
   Thorn-headed
   • (a.) Having a head armed with thorns or spines.
   Found op http://thinkexist.com/dictionary/meaning/thorn-headed/
   
   

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