Present participle(s) in the masculine nominative singular; same glossing in other lexica.
The headword should be spelled with iota subscript (see LSJ s.v.): e)mmata/|zwn. Hesychius epsilon2361 has e)mmataia/zwn, and in that form it might be quoted from Gregory of Nyssa, who has the only three extant instances outside Hesychius.
cf. epsilon 930, mu 276.