Standard Lemma guide

Horologium

name · noun · 7 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.

  • US: Recorded audio is listed in the source snapshot.
  • General-American: /hɔɹəˈloʊd͡ʒiəm/
  • General-American: /hɔɹəˈloʊɡiəm/
  • Received-Pronunciation: /hɒɹəˈləʊd͡ʒɪəm/
  • Received-Pronunciation: /hɒɹəˈləʊɡɪəm/

1

name

Meaning 1

Synonym of Tower of the Winds, a monument in ancient Athens that included a clepsydra and multiple prominent sundials.

Definition source: English Wiktionary via Wiktextract

Usage: historical

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: Tower of the Winds

Antonyms: none provided

2

name

Meaning 2

Synonym of Solarium, a monument in ancient Rome whose obelisk was once believed to have acted as a sundial gnomon.

Definition source: English Wiktionary via Wiktextract

Usage: historical

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: Solarium

Antonyms: none provided

3

name

Meaning 3

A constellation of the southern sky, said to resemble a pendulum clock. It lies between the constellations Fornax and Dorado.

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

4

name

Meaning 4

Alternative letter-case form of horologium, the book of hours in the Eastern Orthodox and Catholic churches.

Definition source: English Wiktionary via Wiktextract

Usage: alt-of

Topics: Christianity

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

5

noun

Meaning 5

Synonym of chronometer or clock, a timekeeping device.

Definition source: English Wiktionary via Wiktextract

Usage: archaic, historical

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: chronometer or clock

Antonyms: none provided

6

noun

Meaning 6

Synonym of astronomical clock.

Definition source: English Wiktionary via Wiktextract

Usage: uncommon

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: astronomical clock

Antonyms: none provided

7

noun

Meaning 7

Synonym of horologion, the book of hours in Eastern Orthodoxy and Catholicism.

Definition source: English Wiktionary via Wiktextract

Topics: Christianity

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: horologion

Antonyms: none provided

History

Etymology

See horologium. As a location in Rome, a clipping of Latin Hōrologium Augustī (“Sundial of Augustus”). As a constellation, a clipping of Latin Hōrologium Oscillitorium (“Pendulum Clock”), coined in 1763 by the French astronomer De Lacaille to honor the Dutch astronomer and mathematician Christian Huygens, who had written a major work by that name.

From Latin horologium, from Ancient Greek ὡρολόγιον (hōrológion). In reference to Eastern Orthodoxy, via its Byzantine Greek development. See menologium. Doublet of horologe.

Across languages

Translations

16 source translations are retained for this English entry.

  • Chinese Mandarin: 時鐘座 /时钟座 (Shízhōngzuò) — constellation
  • Esperanto: Horloĝo — constellation
  • Finnish: Heilurikello — constellation
  • French: Horloge — constellation
  • Galician: Reloxo — constellation
  • German: Pendeluhr — constellation
  • Greek: Ωρολόγιον (Orológion) — constellation
  • Irish: an Clog — constellation
  • Japanese: 時計座 (Tokeiza) — constellation
  • Japanese: とけい座 (Tokeiza) — constellation
  • Korean: 시계(時計)자리 (Sigyejari) — constellation
  • Low German: Pennelklock — constellation
  • Malay: Jam — constellation
  • Polish: Zegar — constellation
  • Russian: Часы́ (Časý) — constellation
  • Spanish: Horologium — constellation