Dictionary.net

• An ante-ocular structure or organ of some Collembola, of doubtful function.

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

• [Greek] Appl. an ante-ocular structure or organ of some Collembola, of doubtful function (zool.).

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