|(used as a nonsense word by children to express approval or to represent the longest word in English.)|
|an obscure term ostensibly referring to a lung disease caused by silica dust, sometimes cited as one of the longest words in the English language.|
photocoagulation pho·to·co·ag·u·la·tion (fō'tō-kō-āg'yə-lā'shən)
Surgical coagulation of tissue by means of intense light energy, such as a laser, performed to destroy abnormal tissues or to form adhesive scars, especially in ophthalmology.