What does amylic mean?
Amylic is an adjective used in chemistry to describe substances relating to or derived from the amyl group, a five-carbon alkyl radical with the formula C5H11. The term appears most often in connection with amyl alcohols — colourless liquids known for their strong, somewhat fruity or solvent-like odour — and with esters and ethers formed from them. In older chemical literature, 'amylic' was frequently applied to the character of fusel oil, the harsh by-product of fermentation that distillers work to remove. Although its root word shares a name with 'amylum', the Latin term for starch, amylic itself has nothing to do with starch; that association belongs instead to words such as amyloid and amylase. Today the adjective survives mainly in technical writing and historical texts, having been largely superseded in modern nomenclature by the simpler term 'pentyl'. For general readers it serves chiefly as an example of how nineteenth-century chemistry named compounds after the radicals they contained.
adjectiveOf, relating to, or derived from amyl (the pentyl group, C5H11), especially as found in amyl alcohols and their derivatives.
- Relating to or derived from the amyl (pentyl) group, C5H11, especially in reference to amyl alcohols and their characteristic properties.
- Having the qualities or odour characteristic of amyl alcohol.
"The chemist noted a distinct amylic odour rising from the fermentation flask."
"Fermentation produced a noticeable amylic aroma reminiscent of ripe bananas."
"Early organic chemists classified the fusel oils largely by their amylic content."
Despite its name suggesting starch, 'amylic' actually describes the punchy, banana-like smell of amyl alcohol — the compound once blamed for making cheap spirits taste harsh.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of amylic
The word amylic derives from 'amyl', the name chemists gave to the pentyl group, combined with the suffix '-ic' customary for adjectives describing relations to radicals or elements. The name 'amyl' itself traces back through French to 'amylum', the Latin word for starch, because early chemists first isolated amyl alcohol from fermented starch-derived material (fusel oil), though the group is not chemically related to starch. Amylic thus belongs to a family of terms built on the same root, including amyloid, amylose, and amylase, which do concern starch-like substances.
How amylic is actually used
A technical term confined almost entirely to chemistry and historical scientific literature; rarely encountered outside those contexts.
Easily confused with amylic
Amyl refers to the pentyl group (C5H11) itself, while amylic is the adjective describing compounds derived from or containing that group.
Amyloid denotes starch-like proteins associated with certain diseases, whereas amylic pertains to the five-carbon amyl group in organic chemistry.