Phrase guide
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
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.
noun
The first chamber of the heart in fish, amphibians, and reptiles, emptying into the right atrium.
Definition source: English Wiktionary via Wiktextract
Topics: biology, natural-sciences, zoology, zootomy
No example sentence was provided for this meaning.
Synonyms: none provided
Antonyms: none provided
noun
An enlarged pouch that adjoins the heart, is formed by the union of the large systemic veins, and is the passage through which venous blood enters the heart in lower vertebrates and in embryos of higher forms.
Definition source: English Wiktionary via Wiktextract
Topics: anatomy, medicine, sciences
No example sentence was provided for this meaning.
Synonyms: none provided
Antonyms: none provided
History
Unadapted borrowing from New Latin sinus vēnōsus (“venous hollow”).
Across languages
2 source translations are retained for this English entry.
