"any chamber that is connected to other chambers or passageways (especially one of the two upper chambers of the heart)"@en-us . "0.0809418"^^ . "0.107461"^^ . . "0.0020215"^^ . "atrium"^^ . . "0.0161114"^^ . . . . "0.246022"^^ . "05393023-n"^^ . "104191921"@en-us . "atrium"@en-us . "0.229314"^^ . "0"^^ . . . . . "0.307789"^^ . . "any chamber that is connected to other chambers or passageways (especially one of the two upper chambers of the heart)"@en-us . . . . . "105393023"^^ . . . . . "0.0103398"^^ . . . "105085330"@en-us . . "0"^^ . .