Emily Dickinson Lexicon

siren, adj. [see siren, n.]

1. Enticing; alluring; thought-provoking; [word play] serene; shining; sunlit.
2. Enchanting; attractive; enthralling; fascinating; ravishing; overpowering, like the music of bewitching mermaids; resembling the song of mythical creatures that lured sailors towards death; overwhelmingly beautiful, like the call of creatures who are part woman and part bird; [fig.] poetic; lyrical.