The longest words in Oxford Dictionary

Yes , you guess the right things . Today i'm going to share this funny but debatable things.

The longest words in Oxford Dictionaries are:

• Pneumonoultramicroscopicsilicovolcanoconiosis : a supposed lung disease - 45 letters
• Conconcondialionsuplantickhuparation : dust - 36 letters
• Floccinaucinihilipilification : the estimation of something as worthless - 29 letters
• Antidisestablishmentarianism : opposition to the disestablishment of the Church of England - 28 letters
• Pseudopseudohypoparathyroidism - 30 letters
• Otorhinolaryngological - 22 letters
• Immunoelectrophoretically - 25 letters
• Psychophysicotherapeutics - 25 letters
• Thyroparathyroidectomized - 25 letters
• Pneumoencephalographically  - 26 letters
• Radioimmunoelectrophoresis - 26 letters
• Psychoneuroendocrinological - 27 letters
• Hepaticocholangiogastrostomy - 28 letters
• Spectrophotofluorometrically - 28 letters