isomerisation vs transition

isomerisation and transition both are nouns.

Word	Noun	Adjective	Verb	Adverb
isomerisation	Yes	No	No	No
transition	Yes	No	Yes	No

As nouns, transition is a hypernym of isomerisation; that is, transition is a word with a broader meaning than isomerisation:

Other hypernyms of isomerisation include changeover, conversion.

isomerisation (noun)	transition (noun)
the conversion of a compound into an isomer of itself	the act of passing from one state or place to the next
	a passage that connects a topic to one that follows
	a musical passage moving from one key to another
	an event that results in a transformation
	a change from one place or state or subject or stage to another

isomerisation (verb)	transition (verb)
	make or undergo a transition (from one state or system to another)
	cause to convert or undergo a transition