noun Date: 1839 one of the marginal flowers of the head in a composite plant (as the aster) that also has disk flowers, the entire head in a plant (as chicory) that lacks disk flowers
RAY FLOWER
Meaning of RAY FLOWER in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012