Pesulus or Pessulus: How To spell?

The word Pesulus is misspelled against Pessulus, a noun meaning "A delicate bar of cartilage connecting the dorsal and ventral extremities of the first pair of bronchial cartilages in the syrinx of birds."

--> Pessulus has double "ss" is mispronounced as "s"
Remember double 'SS' in between the strings pe & ulus which should not be misspelled with single 'S'
Wrong Spelling:  pe-s-ulus 
Correct Spelling:  pe-ss-ulus 
Check more misspelled words of Pessulus to spell it correct.

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