add details, as to an account or idea; clarify the meaning of and discourse in a learned way, usually in writing; "She elaborated on the main ideas in her dissertation"
write or speak in great detail, as in: Please forgive me if I expatiate, but this is my favorite topic
\ik-SPAY-shee-ayt\, verb: 1 To speak or write at some length; to be copious in argument or discussion; to enlarge 2 To range at large, or without restraint