Definition of guajillo in US English:

guajillo

(also guajillo chili, guajillo pepper)

noun

  • A moderately hot variety of chili pepper, used especially in Mexican cooking.

    ‘house-made vodka infused with guajillo, cayenne, and Mexican red pepper’
    ‘he gives stewed collard greens a kick with mild, earthy guajillo chilis’
    as modifier ‘lamb marinated with guajillo chili peppers’

Origin

Mexican Spanish.

Pronunciation

guajillo

/ɡwäˈhē(y)ō//ɡwɑˈhi(j)oʊ/