Aldehyd
Mae aldehyd yn gyfansoddyn cemegol sy'n cynnwys grŵp carbonyl terfynol. Mae'r grŵp gweithredol yma, sy'n cynnwys atom o garbon wedi bondio ag atom o hydrogen ac sydd hefyd wedi bondio'n ddwbl â'r ocsigen (fformiwla gemegol O=CH-) yn cael ei alw'n "grŵp aldehyd".
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| Enghraifft o'r canlynol | dosbarth strwythurol cyfansoddion cemegol  |
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| Math | carbonyl compound |
| Rhan o | cellular aldehyde metabolic process, aldehyde biosynthetic process, aldehyde catabolic process, cellular detoxification of aldehyde, cellular response to aldehyde, aldehyde dehydrogenase (NAD+) activity, aldehyde oxidase activity, pyruvate decarboxylase activity, alcohol dehydrogenase [NAD(P)+] activity, aldehyde dehydrogenase (NADP+) activity, alcohol oxidase activity, alkan-1-ol dehydrogenase (acceptor) activity, aliphatic-amine oxidase activity, aldehyde ferredoxin oxidoreductase activity, alkanesulfonate monooxygenase activity, alcohol dehydrogenase (NADP+) activity, aldehyde dehydrogenase (quinone) activity, monoamine oxidase activity, alcohol dehydrogenase (cytochrome c(L)) activity, alcohol dehydrogenase (cytochrome c) activity |
| Yn cynnwys | aldehyde group, side chain |
 Ffeiliau perthnasol ar Gomin Wicimedia | |
-R yw'r grŵp sy'n gysylltiedig ar grŵp aldehyd.
Mae'r gair aldehyd yn deillio o alcohol dehydrogenated (alcohol a ddadhydrogenwyd).
