Wordnet 3.0
NOUN (1)
1. 
 laying explosive mines in concealed places to destroy enemy personnel and equipment; 
[syn: mining, minelaying]
The Collaborative International Dictionary of English v.0.48:
minelaying \minelaying\ n.
   The act or process of laying explosive mines in concealed
   places to destroy enemy personnel and equipment.
   Syn: mining.
        [WordNet 1.5]
WordNet (r) 3.0 (2006):
minelaying
    n 1: laying explosive mines in concealed places to destroy enemy
         personnel and equipment [syn: mining, minelaying]