a European butterfly that hibernates over winter and so is one of the first to be seen in spring. The male has yellow wings, while the female is very pale green.Submitted from: United Kingdom on 27/02/2019
brimstone
noun uncountable
US /ˈbrɪmˌstoʊn/
DEFINITIONS2
1
an old word meaning “sulfur”
Synonyms and related words
Chemical elements
actinium
alkali metal
aluminum
2
a European butterfly that hibernates over winter and so is one of the first to be seen in spring. The male has yellow wings, while the female is very pale green.Submitted from: United Kingdom on 27/02/2019