aza- or (before a vowel) az-

combining form

denoting the presence of nitrogen, esp a nitrogen atom in place of a -CH group or an -NH group in place of a -CH₂ group

⇒ azathioprine

Origin

C20: from az(o)- + -a-

aza-
combining form
or az-

ETYMOLOGY International Scientific Vocabulary az- + -a-

: containing nitrogen in place of carbon and usually the divalent group NH for the group CH₂ or a single trivalent nitrogen atom for the group CH
azathioprine

aza- /ˈeɪzə/ combining form.

ORIGIN: from azo-.

Used in Chemistry to indicate the presence of a nitrogen atom in a molecular ring or chain.

aza-
combining form
or az-
Etymology: International Scientific Vocabulary, from az- + -a-
: containing nitrogen in place of carbon, usually the group −NH− for the group −CH₂− or a single nitrogen atom . N− for the group . CH−
< azacyanine >
< azaphenanthrene >
— compare oxa-, thia-

aza-

Prefix

organic chemistry Used to form names of organic compounds where a carbon atom is replaced by a nitrogen atom.

Etymology

Derived from shortening the word azote, which is an archaic name for nitrogen.

Usage notes

Sometimes a number between hyphens is inserted before it to denote which atom the nitrogen atom replaces.

词汇	aza-
词根词缀	Collins MWCD SOED Webster Wiktionary aza- or (before a vowel) az- combining form denoting the presence of nitrogen, esp a nitrogen atom in place of a -CH group or an -NH group in place of a -CH₂ group ⇒ azathioprine Origin C20: from az(o)- + -a- aza- combining form or az- ETYMOLOGY International Scientific Vocabulary az- + -a- : containing nitrogen in place of carbon and usually the divalent group NH for the group CH₂ or a single trivalent nitrogen atom for the group CH azathioprine aza- /ˈeɪzə/ combining form. ORIGIN: from azo-. Used in Chemistry to indicate the presence of a nitrogen atom in a molecular ring or chain. aza- combining form or az- Etymology: International Scientific Vocabulary, from az- + -a- : containing nitrogen in place of carbon, usually the group −NH− for the group −CH₂− or a single nitrogen atom . N− for the group . CH− < azacyanine > < azaphenanthrene > — compare oxa-, thia- aza- Prefix organic chemistry Used to form names of organic compounds where a carbon atom is replaced by a nitrogen atom. Etymology Derived from shortening the word azote, which is an archaic name for nitrogen. Usage notes Sometimes a number between hyphens is inserted before it to denote which atom the nitrogen atom replaces.
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