composability a proper word in English ? Suppose I have a set of elements and can compose them to create different structures. May I call this property of the set "composability" ?
The term exists in the field of software engineering:
It is not a "standard" English word and many who heard it used would assume it was technical jargon from one field or another.
So, in short, you can use it if you have a matching technical use of "compose" but it is highly recommended that you very explicitly define the term before using it.