mergence

noun

1. (countable, uncountable)The act of merging.

   “[…] and that by the possession of a central cell in some of the species there is indicated a mergence from Fasciculophyllum into the genus Centrocellulosum--a relationship which it is now my province to trace.”

   “In fact, in Lawrence's prose, we see clearly that there is not a mergence of two into one, but on the contrary, an existential distance that allows us to awaken both to the wonders of being alive and to our interconnectedness to the whole of Nature.”