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isopentyl
isopentyl n. 
/ˌʌɪsə(ʊ)ˈpɛntɪl/,
Brit. /ˌʌɪsə(ʊ)ˈpɛntʌɪl/
, /ˌʌɪsə(ʊ)ˈpɛntʌɪl//ˌʌɪsə(ʊ)ˈpɛntɪl/U.S. /ˌaɪsəˈpɛn(t)l/
the radical (CH3)2CHCH2CH2—, as in isopentyl alcohol n. a liquid primary alcohol, (CH3)2CH2CH2OH, which has a disagreeable odour and is obtained from fusel oil./ˌaɪsəˈpɛn(t)l/ΘΚΠ
the world > matter > chemistry > organic chemistry > alcohols > [noun] > monohydric alcohols by number of carbon atoms > five
isopentyl alcohol1876
pentanol1923
isoamyl alcohol1970
1876 London, Edinb. & Dublin Philos. Mag. 1 217 One of the two conceivable isopentyl alcohols would be derivable in this way from pseudobutyl alcohol.
1970 H. E. Nursten in A. C. Hulme Biochem. Fruits I. x. 247 Hultin and Proctor..had already found..isopentyl alcohol to be significant as regards the rank odour of over~ripe fruit.
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as lemmas
- to be on the sure side
- to be on the sure side of the hedge
- to be on the tenter(s
- to be on the tenterhooks
- to be on the top ropes
- to be on the warpath
- to be on the weigh-scales
- to be on the weighscales
- to be on the wrong side of a person
- to be on the —— side
- to be on thorns
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- to be on to
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- to be on trial for one's life
- to be on wires
- to be one mass of
- to be one reckoning
- to be one's bag
- to be one's bit
- to be one's brother's keeper
- to be one's craftmaster
- to be one's craftsmaster
- to be one's merry way