"108670559"@en-us . "109246883"^^ . . "0"^^ . . . "(chemistry) a chain of atoms in a molecule that forms a closed loop"@en-us . . . . "106689118"@en-us . "closed chain"@en-us . . . . . . . "ring"@en-us . . "0"^^ . . . . . . . . . . "09246883-n"^^ . . "closed chain"^^ . . .