Standard Lemma guide

vulcanoid

adj · noun · 4 senses · updated from the 2026-07-25 local source snapshot

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

Pronunciation

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1

adj

Meaning 1

Of or pertaining to a vulcanoid.

Definition source: English Wiktionary via Wiktextract

Usage: not-comparable

Topics: astronomy, natural-sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

A member of the hypothetical population of small asteroids orbiting in the dynamically stable zone between 0.08 and 0.21 AU from the Sun

Definition source: English Wiktionary via Wiktextract

Topics: astronomy, natural-sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

noun

Meaning 3

An asteroid whose orbit is wholly within the orbit of Mercury.

Definition source: English Wiktionary via Wiktextract

Usage: broadly, informal

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

4

noun

Meaning 4

Alternative form of vulcanoid

Definition source: English Wiktionary via Wiktextract

Usage: alt-of, alternative

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

From Vulcan + -oid, from the hypothetical planet Vulcan, erroneously believed to exist within the orbit of Mercury.