[1] : WordNet (r) 2.0

monozygous twin
     n : either of two twins developed from the same fertilized ovum
         having the same genetic material syn: identical twin,
          monozygotic twin
see also:
identical twin monozygotic twin 

Twin >> T Words
Twin, definition of term: Twin
twin_pag1.html

Twin Bed >> T Words
Twin Bed, definition of term: Twin Bed
twin+bed_pag1.html

Identical Twin >> I Words
Identical Twin, definition of term: Identical Twin
identical+twin_pag1.html