olefin

Monoolefin is likely misspelled.

Monoolefin has no English definition.

As a noun olefin

is any of a class of unsaturated open-chain hydrocarbons such as ethylene; an alkene with only one carbon-carbon double bond.

As nouns the difference between olefine and olefin

is that olefine is olefiant gas, or ethylene while olefin is any of a class of unsaturated open-chain hydrocarbons such as ethylene; an alkene with only one carbon-carbon double bond.

As nouns the difference between olein and olefin

is that olein is any naturally-occurring greasy or oily substance related to fat while olefin is any of a class of unsaturated open-chain hydrocarbons such as ethylene; an alkene with only one carbon-carbon double bond.

In organic chemistry terms the difference between olefin and crossmetathesis

is that olefin is any of a class of unsaturated open-chain hydrocarbons such as ethylene; an alkene with only one carbon-carbon double bond while crossmetathesis is the reaction of two terminal olefins with the release of ethylene.

In organic chemistry terms the difference between olefin and nitroolefin

is that olefin is any of a class of unsaturated open-chain hydrocarbons such as ethylene; an alkene with only one carbon-carbon double bond while nitroolefin is any nitro derivative of an olefin.

As nouns the difference between olefin and hydrocarboxylation

is that olefin is olefin while hydrocarboxylation is (organic chemistry) the addition reaction of carbon monoxide and either water or an alcohol to the double bond of an olefin to produce a carboxylic acid or ester respectively.

In organic chemistry terms the difference between olefin and olefination

is that olefin is any of a class of unsaturated open-chain hydrocarbons such as ethylene; an alkene with only one carbon-carbon double bond while olefination is any reaction that yields an olefin.