Same entry, according to Adler, in the Ambrosian Lexicon (265). The headword and gloss are aorist active participles in the masculine nominative singular. The headword one (from omicron 231) must be quoted from somewhere; there are extant possibilities in Lycophron (Alexandra 79), Philo of Alexandria, and elsewhere.
The verb bre/xei which provides the gloss is the ordinary word for "it rains" in Modern Greek.