Demethylated

Part of speech: adjective, verb

Definitions

1. Having undergone the removal of one or more methyl groups from a molecule or compound, typically altering its chemical properties or biological activity; describing a chemical state where methyl groups have been extracted
2. Refers to the process or state of a substance in which methyl groups have been enzymatically or chemically removed, often resulting in changes to its function or structure; indicating a modified molecular configuration without methyl attachments
3. Characterizes a compound or biomolecule that has experienced the loss of methyl groups, affecting its interaction or stability; used in contexts where demethylation impacts genetic expression or chemical behavior

Etymology: The word is built from two parts that chemists have used together for about two centuries. The first, "de-", comes from Latin "dē", meaning "down from" or "away from", and in chemistry it signals removal. The second is "methylate", itself built from "methyl", the name given to the CH3 group. That name comes from German "Methyl", which was formed from Greek "méthu" (wine) and "hūlē" (wood, or raw material), because the group was first isolated from wood alcohol. So a substance that has lost its methyl groups is, etymologically, one that has had its "wine-wood" taken away. "Demethylate" is a straightforward compound: English "methylate" (to introduce a methyl group) with the Latin prefix "de-" added to reverse it. The past tense and past participle, "demethylated", are used in the same way, describing a molecule or compound from which methyl groups have been removed. The verb sense is the form the adjective grows from, so the word works in both roles without any change in shape.

Synonyms: dealkylated, desmethylated, demethoxylated, decarboxylated, deaminated

Antonyms: methylated, alkylated, methoxylated, carboxylated, aminated