Cone-in-cone at English => English (Websters 1913) Of Explained:
Cone-in-cone \Cone"-in-cone"\, a. (Geol.)
Consisting of a series of parallel cones, each made up of
many concentric cones closely packed together; -- said of a
kind of structure sometimes observed in sedimentary rocks.
cone-in-cone at English (WD) Of Explained:
AdjectiveInter: en-adj » -
Inter: Webster 191 » 3