Definition of "forget-me-not" in English

noun

1. Any of the flowering plants of the genus Myosotis, mostly with a small five-petalled blue flower; a flower from such a plant.

2. Any of certain species of genus Cynoglossum

3. A light tint of blue, the color of the flower.

4. (entomology) Any of various light-blue coloured lycaenid butterflies of the Asian and Australasian genus Catochrysops, especially Catochrysops strabo native to India and Southeast Asia.