Answer: dimer

AnswerCrossword Clue
DIMERNickel-and-... (person being petty about money)
DIMERNickel-and-... (cheapskate)
DIMERNickel-and-...
DIMERNickel-and-... (petty sort)
dimerpolymer derived from two identical monomers
dimera molecule compound with two identical molecules
dimermolecule composed of two identical, simpler molecules