Search Result for "overburden": 
Wordnet 3.0

NOUN (2)

1. the surface soil that must be moved away to get at coal seams and mineral deposits;

2. an excessive burden;
[syn: overload, overburden]


VERB (2)

1. burden with too much work or responsibility;

2. load with excessive weight; 



The Collaborative International Dictionary of English v.0.48:

Overburden \O`ver*bur"den\, v. t.
   To load with too great weight or too much care, etc. --Sir P.
   Sidney.
   [1913 Webster]


The Collaborative International Dictionary of English v.0.48:

Overburden \O"ver*bur`den\, n.
   The waste which overlies good stone in a quarry. --Raymond.
   [1913 Webster]


WordNet (r) 3.0 (2006):

overburden
    n 1: the surface soil that must be moved away to get at coal
         seams and mineral deposits
    2: an excessive burden [syn: overload, overburden]
    v 1: burden with too much work or responsibility
    2: load with excessive weight