Wordnet 3.0
NOUN (1)
1. 
 a long lace for fastening boots; 
The Collaborative International Dictionary of English v.0.48:
bootlace \bootlace\ n.
   a long lace for fastening boots.
   [WordNet 1.5]
WordNet (r) 3.0 (2006):
bootlace
    n 1: a long lace for fastening boots