catechu /katˈi-choo or -shoo/

A dark extract of Indian plants (acacia, betel nut, etc) which are rich in tannin

catˈechin /-kin/ noun

A soluble crystalline compound, a major constituent of catechu, used in tanning and dyeing

catˈechol /-kōl or -chōl/ noun

A white crystalline phenol-alcohol derived from catechu

catechōˈlamine /-kōˈlə-mēn or -chōˈ/ noun

Any of several compounds (eg adrenaline and noradrenaline) that are derivatives of catechol

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