Dictionary.net

• A basidium producing a mycelium of four cells from each of which a sporidium is developed by abstriction.

1920 - A dictionary of scientific terms.
By Henderson, I. F.; Henderson, W. D.

• [Greek] A Basidium producing a mycelium of four cells from each of which a sporidium is developed by abstriction (bot.).

1920 - A dictionary of scientific terms (6th edition)
By J.H. Kenneth