Definify.com
Webster 1913 Edition
Opisthodome
O-pis′tho-dome
,Noun.
 [L. 
opisthodomus
, Gr. [GREEK]; ὄπισθεν 
behind + δόμοσ 
house: cf. F. opisthodome
.] (Arch.) 
A back chamber; especially, that part of the naos, or cella, farthest from the main entrance, sometimes having an entrance of its own, and often used as a treasury. 
Webster 1828 Edition
Opisthodome
OPIS'THODOME
,Noun.
  In Greece, a part or place in the back part of a house.
Definition 2025
opisthodome
opisthodome
English
Noun
opisthodome (plural opisthodomes)
- (architecture) A back chamber; especially, that part of the naos, or cella, farthest from the main entrance, sometimes having an entrance of its own, and often used as a treasury.