Search Result for "expatiation": 
Wordnet 3.0

NOUN (1)

1. a discussion (spoken or written) that enlarges on a topic or theme at length or in detail; 



The Collaborative International Dictionary of English v.0.48:

Expatiation \Ex*pa`ti*a"tion\, n.
   Act of expatiating.
   [1913 Webster]


WordNet (r) 3.0 (2006):

expatiation
    n 1: a discussion (spoken or written) that enlarges on a topic
         or theme at length or in detail