a person who catechizes.
Ecclesiastical. a person appointed to instruct catechumens in the principles of religion as a preparation for baptism.
1560s, from Church Latin catechista, from Greek katekhistes “one who catechizes,” from katekhizein “to teach orally” (see catechize). Related: Catechistic; catechistical.
a colorless, crystalline, dihydroxyl derivative of benzene, C 6 H 6 O 2 , the ortho isomer, used chiefly in photography, for dyeing, and as a reagent; pyrocatechol. Historical Examples catechol tans, often obtained from barks, contain usually about 60 per cent. Animal Proteins Hugh Garner Bennett Tanning materials are divided into two main classes: […]
any of a group of chemically related neurotransmitters, as epinephrine and dopamine, that have similar effects on the sympathetic nervous system. noun any of a group of hormones that are catechol derivatives, esp adrenaline and noradrenaline n. type of hormone, from catechol (1880), from catechu, 17c. name for an astringent substance used in medicines, dyeing, […]
any of several astringent substances obtained from various tropical plants, especially from the wood of two East Indian acacias, Acacia catechu and A. suma: used in medicine, dyeing, tanning, etc. Historical Examples The extract is an efficient substitute for catechu and kino. Cooley’s Practical Receipts, Volume II Arnold Cooley For other dyes cotton has a […]
Ecclesiastical. a person under instruction in the rudiments of Christianity, as in the early church; a neophyte. a person being taught the elementary facts, principles, etc., of any subject. noun (Christianity) a person, esp in the early Church, undergoing instruction prior to baptism n. “new convert,” 15c., from French catéchumène, from Church Latin catechumenus, from […]