bis-
PRF สอง คู่ ทวิ bi song
bis- ▶comb. form Chemistry used to form the names of compounds containing two groups identically substituted or coordinated: bis (2-aminoethyl ) ether.
bis- |bɪs | ▶combining form Chemistry used to form the names of compounds containing two groups identically substituted or coordinated: bis (2-aminoethyl ) ether.