Definition from Wiktionary, the free dictionary
Alternative forms 
ochre (plural ochres)
- An earth pigment containing silica, aluminum and ferric oxide
- A somewhat dark yellowish orange colour
- (molecular biology, colloquial) The stop codon sequence "UAA."
Derived terms 
ochre (not comparable)
- Having a yellow-orange colour.
- (archaeology) Referring to cultures that covered their dead with ochre.
having yellow-orange colour
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- to cover with ochre