knowledge time

Here , now i am going to help you learn the greek alphabet , it starts with alpha and ends with omega
Alpha
Beta
Gamma
Delta
Epsilon
Zeta
Eta
Theta
Iota
Kappa
Lambda
Mu
Nu
Si
Omicron
Pi
Rho
Sigma
Tau
Upsilon
Phi
Shi
Chi
Omega
So now do know which is the longest word in english and the meaning of it?
Well I know it so let me tell you , maybe you cant pronounce it unless you are skilled
Pnuemenoultramicroscopicsilicovolcanoconiosis is the longest word in English and it is a lung disease caused by silica dust and it is called silicosis in short and its pronounced as numenoultramicroscopicsilicovolcanoconiusis and it is a forty five letter word 
So i will tell you what is amniocentesis now
Amniocentesis is the art of checking if the baby''s gender and if it has any disablities etcetera.it is also very risky .