Standard Lemma guide

metalloid

adj · noun · 6 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

Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.

  • /ˈmɛtəlɔɪd/
  • Southern-England: Recorded audio is listed in the source snapshot.

1

adj

Meaning 1

Of or relating to the metalloids.

Definition source: English Wiktionary via Wiktextract

Usage: not-comparable

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

adj

Meaning 2

Characteristic of the metal music genre.

Definition source: English Wiktionary via Wiktextract

Usage: informal

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

noun

Meaning 3

An element, such as silicon or germanium, intermediate in properties between that of a metal and a nonmetal; especially an elemental semiconductor.

Definition source: English Wiktionary via Wiktextract

Topics: chemistry, natural-sciences, physical-sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

4

noun

Meaning 4

The metallic base of a fixed alkali, or alkaline earth; applied to sodium, potassium, and some other metallic substances whose metallic character was supposed to be not well defined.

Definition source: English Wiktionary via Wiktextract

Usage: obsolete

Topics: chemistry, natural-sciences, physical-sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

5

noun

Meaning 5

A nonmetal.

Definition source: English Wiktionary via Wiktextract

Usage: obsolete

Topics: chemistry, natural-sciences, physical-sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

6

adjective satellite

Meaning 6

of or being a nonmetallic element that has some of the properties of metal

Definition source: Princeton WordNet 3.0

Examples

  • arsenic is a metalloid element

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

Etymology tree Ancient Greek μέτᾰλλον (métăllon)der. Latin metallum Old French metalbor. Middle English metal English metal Ancient Greek -ο- (-o-)der. Latin -o- Proto-Indo-European *weyd- Proto-Indo-European *-os Proto-Indo-European *wéydos Proto-Hellenic *wéidos Ancient Greek εἶδος (eîdos) Proto-Indo-European *-os Proto-Indo-European *-ēs Ancient Greek -ης (-ēs) Ancient Greek -ειδής (-eidḗs) Latin -oīdēslbor. English -oid English metalloid From metal + -oid.

Across languages

Translations

32 source translations are retained for this English entry.

  • Bulgarian: металоид (metaloid) — element
  • Bulgarian: неметал (nemetal) — element
  • Catalan: metal·loide — element
  • Chinese Mandarin: 類金屬 /类金属 (lèijīnshǔ) — element
  • Chinese Mandarin: 半金屬 /半金属 (bànjīnshǔ) — element
  • Esperanto: metaloido — element
  • Estonian: poolmetall — element
  • Finnish: puolimetalli — element
  • French: métalloïde — element
  • German: Halbmetall — element
  • German: Metalloid — element
  • Hungarian: félfém — element
  • Icelandic: málmleysingi — element
  • Icelandic: hálfmálmur — element
  • Icelandic: málmbróðir — element
  • Irish: miotalóideach — element
  • Italian: metalloide — element
  • Italian: semimetallo — element
  • Latvian: pusmetāls — element
  • Māori: haukonu — element
  • Persian: شبهفلز (šebh-e-felez) — element
  • Polish: półmetal — element
  • Polish: metaloid — element
  • Portuguese: metaloide — element
  • Romanian: metaloid — element
  • Russian: металло́ид (metallóid) — element
  • Serbo-Croatian: polumetal — element
  • Spanish: semimetal — element
  • Spanish: metaloide — element
  • Swedish: halvmetall — element
  • Tagalog: malametal — element
  • Vietnamese: á kim — element