- elongation - the quality of being elongated
--1 is a kind of longness
Derived form: verb elongate1 - elongation, extension - an addition to the length of something
--2 is a kind of addition, add-on, improver
Derived form: verb elongate1 - elongation - the act of lengthening something
--3 is a kind of change of shape
Derived form: verb elongate1