Added 10 October 2026 asteraceae noun Categories: PlantsRare Words noun ! Definition from WordNet 3.1, Princeton University. More about asteraceae at Wordnik → Where our words come from → Plants with heads composed of many florets: aster; daisy; dandelion; goldenrod; marigold; lettuces; ragweed; sunflower; thistle; zinnia. Related Words: compositaelythraceaemarantaceaeasteralesaraliaceaerussulaceaecampanulaceaeacanthaceaecaprifoliaceae Back to today's word