Bot. a mass of pollen grains stuck together and transferred as a whole in pollination, often by an insect
Origin of polliniumModern Latin from Classical Latin pollen: see pollen
A coherent mass of pollen grains typically transferred as a unit during pollination, found in the flowers of certain plants such as orchids and milkweeds.
Origin of polliniumNew Latin from pollen pollin- pollen ; see pollinate .