Standard Lemma guide

radial

adj · noun · 15 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.

  • /ˈɹeɪdi.əl/
  • Southern-England: Recorded audio is listed in the source snapshot.
  • CMU ARPABET: R EY1 D IY0 AH0 L Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

adj

Meaning 1

Arranged like rays that radiate from, or converge to, a common centre.

Definition source: English Wiktionary via Wiktextract

Examples

  • The spokes on most modern bicycle wheels are tangential to the hub rather than radial.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

adj

Meaning 2

Of, or relating to a radius (line joining to a geometric centre).

Definition source: English Wiktionary via Wiktextract

Topics: geometry, mathematics, sciences

Examples

  • What is the relationship between arc length and radial length?

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

adj

Meaning 3

Of, or relating to a radius (line joining to a geometric centre).

Moving or acting along a radius.

Definition source: English Wiktionary via Wiktextract

Topics: geometry, mathematics, sciences

Examples

  • radial velocity

Meaning relationships

Synonyms: none provided

Antonyms: none provided

4

adj

Meaning 4

Of, or relating to the radius bone.

Definition source: English Wiktionary via Wiktextract

Topics: anatomy, medicine, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

5

adj

Meaning 5

Of, or relating to the radius (vein), and/or the wing areas next to it.

Definition source: English Wiktionary via Wiktextract

Topics: biology, entomology, natural-sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

6

adj

Meaning 6

Developing uniformly on all sides.

Definition source: English Wiktionary via Wiktextract

Topics: biology, botany, natural-sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

7

adj

Meaning 7

Having reinforcing cords placed in parallel across the tyre at 90 degrees to the direction of travel, especially as contrasted with cross-ply; see also radial tyre.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

8

noun

Meaning 8

An item in a radial configuration, such as a spoke of a wheel.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

9

noun

Meaning 9

An item in a radial configuration, such as a spoke of a wheel.

One of a set of earthing wires arranged radially around the base of a wireless antenna.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

10

noun

Meaning 10

A radial tire / radial tyre.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

11

adjective

Meaning 11

issuing in rays from a common center; relating to rays of light

Definition source: Princeton WordNet 3.0

Examples

  • radial heat

Meaning relationships

Synonyms: none provided

Antonyms: none provided

12

adjective

Meaning 12

relating to or moving along or having the direction of a radius

Definition source: Princeton WordNet 3.0

Examples

  • radial velocity

Meaning relationships

Synonyms: none provided

Antonyms: none provided

13

adjective

Meaning 13

relating to or near the radius

Definition source: Princeton WordNet 3.0

Examples

  • the radial aspect of the forearm

Meaning relationships

Synonyms: none provided

Antonyms: none provided

14

adjective satellite

Meaning 14

arranged like rays or radii; radiating from a common center

Definition source: Princeton WordNet 3.0

Examples

  • radial symmetry
  • a starlike or stellate arrangement of petals
  • many cities show a radial pattern of main highways

Meaning relationships

Synonyms: stellate, radiate

Antonyms: none provided

15

noun

Meaning 15

pneumatic tire that has radial-ply casing

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: radial tire, radial-ply tire

Antonyms: none provided

Broader terms: pneumatic tire, pneumatic tyre

History

Etymology

From Medieval Latin radiālis (“radial”), from Latin radius. By surface analysis, radius + -al.

Across languages

Translations

34 source translations are retained for this English entry.

  • Bulgarian: радиален (radialen) — arranged like rays that radiate from, or converge to a common center
  • Catalan: radial — arranged like rays that radiate from, or converge to a common center
  • Czech: paprsčitý — arranged like rays that radiate from, or converge to a common center
  • Czech: paprskovitý — arranged like rays that radiate from, or converge to a common center
  • Czech: radiální — arranged like rays that radiate from, or converge to a common center
  • Finnish: säteittäinen — arranged like rays that radiate from, or converge to a common center
  • Finnish: säde- — arranged like rays that radiate from, or converge to a common center
  • Finnish: säteittäis- — arranged like rays that radiate from, or converge to a common center
  • Finnish: säteis- — arranged like rays that radiate from, or converge to a common center
  • Finnish: sädemäinen — arranged like rays that radiate from, or converge to a common center
  • Finnish: radiaali — arranged like rays that radiate from, or converge to a common center
  • Finnish: radiaalinen — arranged like rays that radiate from, or converge to a common center
  • French: radial — arranged like rays that radiate from, or converge to a common center
  • German: strahlenförmig — arranged like rays that radiate from, or converge to a common center
  • German: strahlig — arranged like rays that radiate from, or converge to a common center
  • German: radial — arranged like rays that radiate from, or converge to a common center
  • Greek: ακτινοειδής (aktinoeidís) — arranged like rays that radiate from, or converge to a common center
  • Hindi: त्रिज्यीय (trijyīya) — arranged like rays that radiate from, or converge to a common center
  • Occitan: radial — arranged like rays that radiate from, or converge to a common center
  • Portuguese: radial — arranged like rays that radiate from, or converge to a common center
  • Romanian: radial — arranged like rays that radiate from, or converge to a common center
  • Russian: радиальный (radialʹnyj) — arranged like rays that radiate from, or converge to a common center
  • Russian: лучевой (lučevoj) — arranged like rays that radiate from, or converge to a common center
  • Spanish: radial — arranged like rays that radiate from, or converge to a common center
  • Swedish: radiell — arranged like rays that radiate from, or converge to a common center
  • Bulgarian: радиален (radialen) — moving along a radius
  • Portuguese: radial — moving along a radius
  • Russian: радиальный (radialʹnyj) — moving along a radius
  • Bulgarian: радиусов (radiusov) — of, or relating to the radius bone
  • Catalan: radial — of, or relating to the radius bone
  • Finnish: värttinäluu- — of, or relating to the radius bone
  • Russian: лучевой (lučevoj) — of, or relating to the radius bone
  • Bulgarian: радиална гума (radialna guma) — tire
  • Finnish: vyörengas — tire
Real reading context

radial in complete knowledge articles