European butterfly having reddish-brown wings each marked with a purple eyespot
"While hiking through the meadow, we spotted a peacock butterfly resting on an old stone wall with its distinctive purple eyespots clearly visible."
male peafowl; having a crested head and very large fanlike tail marked with iridescent eyes or spots
"The peacock struts proudly across the garden, displaying its magnificent crest and shimmering tail to attract a mate."
A male peafowl, especially Pavo cristatus, notable for its brilliant iridescently ocellated tail.
"The vibrant blue and green feathers of the peacock shimmered brilliantly in the sunlight as it strutted across the garden lawn."
To strut about proudly.
"After winning the award, he began to peacock around the room in his tuxedo."
A surname.
"The Peacock family has lived in that Victorian house for three generations."
The word "peacock" comes from Middle English, combining the words for "peafowl" and "rooster." It originally referred to the male bird of the peafowl family.