Phosphatoptosia is a medical term used to describe the loss of vision caused by a lack of phosphate in the body. The spelling of this word can be broken down using the International Phonetic Alphabet. The [f] sound is represented by the letter "ph" while the [s] sound is represented by the letters "t" and "s" in sequence. The [t] sound is repeated twice, followed by the [o] sound represented by the letter "o". Lastly, the [p] sound is represented by the letter "p" and the [iə] sound is represented by the letters "ia".
An abnormal precipitation of phosphates in the urine; phosphaturia (2).
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.