Achondroplasia is an inherited disorder of bone growth that cause theMost common type of dwarfism. It is one of the groups of disorderscollectivelyCalled chondrodysplaias.The Word achondroplasia Was coined by parrot in 1878 to distinguish thedisease from rickets With Proportionately Short Ststure . Kaufmann In1891 , substituted the term Chondrodystrophia Foetalis to implydeficiency of cartilage Proliferation in the growth plate.