Standard Lemma guide
Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.
Sound
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noun
A hypothetical electromagnetic or gravitational wave held together in a confined region by the gravitational attraction of its own field energy.
Definition source: English Wiktionary via Wiktextract
Topics: natural-sciences, physical-sciences, physics
No example sentence was provided for this meaning.
Synonyms: none provided
Antonyms: none provided
noun
Any of a group of basic geometric forms capable of being recognised as a component of a real object.
Definition source: English Wiktionary via Wiktextract
Topics: human-sciences, psychology, sciences
No example sentence was provided for this meaning.
Synonyms: none provided
Antonyms: none provided
noun
A large unit of time, used to measure gradual geological change.
Definition source: English Wiktionary via Wiktextract
No example sentence was provided for this meaning.
Synonyms: none provided
Antonyms: none provided
History
Coined by J. A. Wheeler from gravitational electromagnetic entity.
From geometric + -on.
Blend of geological + eon.
