Definition

Proper noun A small, faint constellation in the southern celestial hemisphere, located near the South Celestial Pole. It is depicted as a water snake.

Usage

Hydrus is used exclusively as a proper noun to name this specific constellation. It is not used in general language.

Examples: * The constellation Hydrus is not visible from most northern latitudes. * Hydrus lies between the bright stars Achernar and the south celestial pole. * Astronomers studied the deep-sky objects within Hydrus.

Advanced Usage

• In astronomical contexts, the genitive form "Hydri" is used to name stars within the constellation, following the Latin convention (e.g., "Beta Hydri").
• It may be referenced in mythological contexts relating to its namesake, the lesser water snake, often in contrast to the larger constellation Hydra.

Variants and Related Words

• Hydri: (Noun) The genitive case form of Hydrus, used in star designations (e.g., "Alpha Hydri").
• Hydra: (Proper noun) A different, much larger constellation representing a water serpent or monster, located in the northern and southern skies.

Synonyms

• The Water Snake (its English translation/representation).
• The Lesser Water Snake (to distinguish it from Hydra).
• The Southern Snake.

Notes on Meaning

• Hydrus has only one meaning in modern English: the name of the constellation. It does not have common, non-astronomical definitions, phrasal verbs, or idioms.
• It should not be confused with the similar-sounding word "hydra," which is a mythological creature or a biological genus.

Noun

1. a constellation in the southern hemisphere near the south celestial pole