Phrase guide

director circle

noun · 1 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.

  • dĭ-rĕk′tər sûr′kəl
  • dī-
  • Received-Pronunciation: /dɪˌɹɛk.tə ˈsɜː.kəl/
  • Received-Pronunciation: /dɪˌɹek.tə ˈsɜː.kəl/
  • Received-Pronunciation: /daɪ̯-/
  • Received-Pronunciation: /dʌɪ̯-/
  • Southern-England: Recorded audio is listed in the source snapshot.
  • Canada, General-American: /dɪˌɹɛk.təɹ ˈsɜɹ.kəl/
  • Canada, General-American: /daɪ̯-/
  • Australian: /dɪˌɹek.tə ˈsɜː.kəl/
  • Australian: /dɑe̯-/
  • New-Zealand: /dəˌɹek.tə ˈsøː.kəl/
  • New-Zealand: /dɑe̯-/
  • Scotland: /dɪˌɹɛk.təɾ ˈsɪɾ.kəl/
  • Scotland: /dɪˌɹɛk.təɾ ˈsɪɾ.kʌl/
  • Scotland: /dʌi̯-/
  • Scotland: /dəi̯-/
  • India: /ɖɪˌɾɛ(ː)k.ʈɜː(ɾ)ˈsɜː(ɾ).kel/
  • India: /-ʈəɾ-/
  • India: /-ˈsəɾ-/
  • India: /ɖəj-/
  • India: /ɖɑːj-/

1

noun

Meaning 1

A circle formed by all 90° crossings of tangents of an ellipse or hyperbola.

Definition source: English Wiktionary via Wiktextract

Topics: geometry, mathematics, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: Fermat-Apollonius circle, orthoptic circle

Antonyms: none provided

History

Etymology

No etymology was provided for this word.

Across languages

Translations

3 source translations are retained for this English entry.

  • Japanese: 準円 (jun'en) — circle formed by all 90° crossings of tangents of an ellipse or hyperbola
  • Portuguese: círculo diretor — circle formed by all 90° crossings of tangents of an ellipse or hyperbola
  • Spanish: círculo director — circle formed by all 90° crossings of tangents of an ellipse or hyperbola