Definition of Horologium in English:

Horologium

Syllabification: Hor·o·lo·gi·um
Pronunciation: /ˌhôrəˌlōjēəm
 
/
Astronomy
1A faint southern constellation (the Clock), between Hydrus and Eridanus.
1.1 (as genitive Horologii /ˌhôrəˌlōjēˌī, -ˌē/) Used with a preceding letter or numeral to designate a star in this constellation: the star R Horologii

Origin

Latin.

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Word of the day grammarian
Pronunciation: grəˈme(ə)rēən
noun
a person who studies and writes about grammar