Definition of fire-red in US English:

fire-red

adjective

  • Of a bright or strong red colour.

noun

  • A bright or strong red colour; specifically (a commercial name for) a brilliant red monoazo pigment characterized by strong resistance to oil and light.

Origin

Late Middle English; earliest use found in The Wycliffite Bible (early version). From fire + red.

Pronunciation

fire-red

/ˌfʌɪəˈrɛd/