Dictionary.net

• The drawn-out basal part of a nematocyst, embedded in the mesogloea.

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

• [Greek] Drawn-out basal part of a nematocyst, embedded in mesogloea.

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