1. (noun)trillium, wood lily, wake-robin any liliaceous plant of the genus Trillium having a whorl of three leaves at the top of the stem with a single three-petaled flower Synonyms: woodlily, wake-robin, jack-in-the-pulpit, trillium
2. (noun)jack-in-the-pulpit, Indian turnip, wake-robin, Arisaema triphyllum, Arisaema atrorubens common American spring-flowering woodland herb having sheathing leaves and an upright club-shaped spadix with overarching green and purple spathe producing scarlet berries Synonyms: jack-in-the-pulpit, woodlily, wake-robin, cuckoopint, trillium, lords-and-ladies