Ketene

From Fresh Dictionary

English

Noun

ketene

1. ((chemistry{{#if:|, {{{2}}}{{#if:|, {{{3}}}{{#if:|, {{{4}}}{{#if:|, {{{5}}}{{#if:|, {{{6}}}{{#if:|, {{{7}}}{{#if:|, {{{8}}}{{#if:|, {{{9}}}}}}}}}}}}}}}}}}})) any of a class of unsaturated ketones, having a general formula R₁R₂C=C=O, that react as if they were inner acid anhydrides
2. ((chemistry{{#if:|, {{{2}}}{{#if:|, {{{3}}}{{#if:|, {{{4}}}{{#if:|, {{{5}}}{{#if:|, {{{6}}}{{#if:|, {{{7}}}{{#if:|, {{{8}}}{{#if:|, {{{9}}}}}}}}}}}}}}}}}}})) the parent compound of this class, CH₂C=O, an unstable, reactive colourless gas