synthon
syn thon |ˈsinˌTHän ˈsɪnθɑn | ▶noun Chemistry a constituent part of a molecule to be synthesized that is regarded as the basis of a synthetic procedure. ORIGIN 1960s: from synthesis + -on .
synthon |ˈsɪnθɒn | ▶noun Chemistry a constituent part of a molecule to be synthesized which is regarded as the basis of a synthetic procedure. ORIGIN 1960s: from synthesis + -on .