Wordnet 3.0
NOUN (1)
1.
diced lobster mixed with Mornay sauce placed back in the shell and sprinkled with grated cheese and browned;
The Collaborative International Dictionary of English v.0.48:
Lobster thermidor \Lob"ster ther"mi*dor\, Lobsters thermidor
\Lob"sters ther"mi*dor\, n.
a dish of lobster meat cooked with a rich creamy wine sauce,
stuffed back into the lobster shell, sprinkled with grated
cheese, and browned.
[PJC]
WordNet (r) 3.0 (2006):
lobster thermidor
n 1: diced lobster mixed with Mornay sauce placed back in the
shell and sprinkled with grated cheese and browned