'Sealing wax' definitions:

Definition of 'sealing wax'

(from WordNet)
noun
Fastener consisting of a resinous composition that is plastic when warm; used for sealing documents and parcels and letters [syn: sealing wax, seal]

Definition of 'Sealing wax'

From: GCIDE
  • Sealing wax \Seal"ing wax`\ A compound of the resinous materials, pigments, etc., used as a material for seals, as for letters, documents, etc. [1913 Webster]