Radical (Noun)
Meaning 1
An atom or group of atoms with at least one unpaired electron; in the body it is usually an oxygen molecule that has lost an electron and will stabilize itself by stealing an electron from a nearby molecule; "in the body free radicals are high-energy particles that ricochet wildly and damage cells".
Classification
Nouns denoting substances.
Synonyms
Hypernyms
Meaning 2
(mathematics) a quantity expressed as the root of another quantity.
Classification
Nouns denoting quantities and units of measure.
Hypernyms
Meaning 3
(chemistry) two or more atoms bound together as a single unit and forming part of a molecule.
Classification
Nouns denoting substances.
Synonyms
Hypernyms
Hyponyms
- Azo Group
- Methylene
- Benzyl
- Azido Group
- Carboxyl
- Nitro Group
- Vinyl Radical
- Cyanide Group
- Cyanide Radical
- Propyl Radical
- Cacodyl Radical
- Acyl
- Propyl
- Nitrite
- Benzyl Radical
- Hydroxyl
- Arsenic Group
- Butyl
- Alkyl Radical
- Allyl Radical
- Chromophore
- Cacodyl
- Methylene Group
- Benzoyl Group
- Ketone Group
- Alkyl
- Amino
- Uranyl Radical
- Vinyl
- Alcohol Group
- Carbonyl Group
- Allyl
- Amyl
- Cyano Group
- Glyceryl
- Aldehyde Group
- Hydroxyl Radical
- Uranyl
- Hydrazo Group
Meaning 4
(linguistics) the form of a word after all affixes are removed; "thematic vowels are part of the stem".
Classification
Nouns denoting communicative processes and contents.
Synonyms
Hypernyms
Meaning 5
A character conveying the lexical meaning of a logogram.
Classification
Nouns denoting communicative processes and contents.
Hypernyms
Meaning 6
A person who has radical ideas or opinions.
Classification
Nouns denoting people.