Top 10 longest words in the English language

10. Otorhinolaryngological (22 letters):

Branch of medical science which deals with the treatment of head, neck, ear, throat and nose disorders.

9. Thyroparathyroidectomized (25 letters):

The process of cutting out Thyroid and Parathyroid glands.

8. Radioimmunoelectrophoresis (26 letters):

Immunoelectrophoresis (Electrophoresis to separate antigens and antibodies) using antigens or antibodies labeled with radioisotopes.

7. Honorificabilitudinitatibus (27 letters):

This is the longest word ever applied by Shakespeare which stands for “The state of being able to achieve honours”.

6. Antidisestablishmentarianism (28 letters):

Evolved in 1838 in Britain, it signifies opposition to proposals for the disestablishment of the Anglican Church.

5. Floccinaucinihilipilification (29 letters):

Process of determining that something is absolutely valueless.

4. Pseudopseudohypoparathyroidism (30 letters):

A genetic disorder which closely imitates the indications but not the effects of pseudohypoparathyroidism and, thus it has mild or no manifestations of hypoparathyroidism or tetanic convulsions.

3. Supercalifragilisticexpialidocious (34 letters):

Something to say when you have nothing to say.

2. Hepaticocholangiocholecystenterostomies (39 letters):

A surgical creation of a connection between the gall bladder and a hepatic duct and between the intestine and the gall bladder.

1. Pneumonoultramicroscopicsilicovolcanoconiosis (45 letters):

Lung disease caused by the inhalation of crystalline silica dust.