presymbiosis en · NOUN
Etymology
Etymology tree Proto-Indo-European *per- Proto-Indo-European *preh₂- Proto-Indo-European *-i Proto-Indo-European *préh₂i? Proto-Italic *prai Proto-Italic *prai- Latin prae-lbor. Middle English pre- English pre- English symbiosis English presymbiosis From pre- + symbiosis.
Meanings
- (uncountable) The stage in the development of an organism during which the necessary biochemical changes are made to allow a move from asymbiosis to symbiosis