Alchemical symbol for fermentation

A sign for the working of a substance from within.

Also known as: Fermentation sign

In Latin:: Fermentatio

AlchemyHistorical & archaeologicalScientificStandard profile

Meanings

Fermentation in the alchemical sense covered both the visible working of wine or bread and, by extension, any internal transformation that proceeded of its own accord once started.

Historically documentedVerified fact
Denotes fermentation: the internal working of a substance which, once begun, continues of itself and alters the whole body.
Historically documentedDocumented interpretation
Applied both to the literal fermentation of wine and dough and to any transformation held to proceed by an internal principle rather than by external force.

Visual description

A curved stroke doubled back on itself above a short horizontal line.

Symmetry: none
Orientation: upright

Confidence

IdentityHigh confidence: High confidence because the identity is documented in encyclopedic references.
Historical originModerate confidence: Moderate confidence because the historical origin is documented in encyclopedic references, but the regional or cultural match to this specific claim is not precise.
Current useHigh confidence: High confidence because the current use is documented in encyclopedic references.
Visual matchHigh confidence: High confidence because the visual match is documented in encyclopedic references.

Sources

The Secrets of Alchemy
Lawrence M. Principe, University of Chicago Press (2013) · retrieved 2026-08-20
The standard modern scholarly account, and the principal corrective to the older occult reading of alchemy. Cited for what alchemical practice actually was and for the historiography of its later reinterpretation.
Alchemical symbol
Wikipedia · retrieved 2026-07-31
Tertiary reference. Used for the character's identity, its documented astronomical and alchemical use, and the fact that astrology assigns it a meaning. Never used to support the astrological claim itself, which is recorded as a tradition rather than a finding.

Last reviewed 2026-08-20

Part of

Alchemical symbols — elements, substances and operations

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Meanings

Fermentation in the alchemical sense covered both the visible working of wine or bread and, by extension, any internal transformation that proceeded of its own accord once started.

Historically documentedVerified fact

Denotes fermentation: the internal working of a substance which, once begun, continues of itself and alters the whole body.

Historically documentedDocumented interpretation

Applied both to the literal fermentation of wine and dough and to any transformation held to proceed by an internal principle rather than by external force.

Confidence

IdentityHigh confidence: High confidence because the identity is documented in encyclopedic references.
Historical originModerate confidence: Moderate confidence because the historical origin is documented in encyclopedic references, but the regional or cultural match to this specific claim is not precise.
Current useHigh confidence: High confidence because the current use is documented in encyclopedic references.
Visual matchHigh confidence: High confidence because the visual match is documented in encyclopedic references.

Sources

The Secrets of Alchemy
Lawrence M. Principe, University of Chicago Press (2013) · retrieved 2026-08-20
The standard modern scholarly account, and the principal corrective to the older occult reading of alchemy. Cited for what alchemical practice actually was and for the historiography of its later reinterpretation.
Alchemical symbol
Wikipedia · retrieved 2026-07-31
Tertiary reference. Used for the character's identity, its documented astronomical and alchemical use, and the fact that astrology assigns it a meaning. Never used to support the astrological claim itself, which is recorded as a tradition rather than a finding.

Last reviewed 2026-08-20