The ability to be analyzed.

What does Analysable mean?

1. to separate (a material or abstract entity) into constituent parts or elements; determine the elements or essential features of (opposed to synthesize). 2. to examine critically, so as to bring out the essential elements or give the essence of: to analyze a poem.

Is that D a proper word?

That'd is a spoken form of 'that would,' or of 'that had' when 'had' is an auxiliary verb.