The headword, presumably quoted from somewhere (but attested only here), is the feminine nominative singular, present participle, of the verb linopta/omai.
Its masculine counterpart linoptw/menos is the contested reading transmitted in Aristophanes, Peace 1178. The scholia there attribute to Aristotle the definition "those who watch over hunting nets", and they criticize two other interpretations: one derived "ignorantly from the birds falling into the nets", and one claiming that the word means "to fear excessively".