1. A liturgical chant of the Roman Catholic Church
   - plainsong, plainchant

Derived forms: Gregorian chants

See also: Gregorian

Type of: chant

Encyclopedia: Gregorian chant

• genus Arnica
• genus Arnoseris
• genus Arrhenatherum
• genus Artamus
• genus Artemia
• genus Artemisia
• genus Arthropteris
• genus Artocarpus
• genus Arum
• genus Arundinaria
• genus Arundo
• genus Arvicola
• genus Asarum
• genus Ascaphus
• genus Ascaridia
• genus Ascaris
• genus Asclepias
• genus Ascophyllum
• genus Asimina
• genus Asio
• genus Aspalathus
• genus Asparagus
• genus Aspergillus
• genus Asperula
• genus Asphodeline