A quantity of nine (9)
The plural form for stimulus is stimuli.
esophagogastroduodenoscopies is the plural form
The plural of stoma is stomata.
The Latin plural is bursae. The English plural is bursas.
Diagnoses is the plural of diagnosis
Osteophytis (plural Osteophytes)
The medical term dysphagia means trouble swallowing, and is neither singular or plural.
No. The medical term dysphagia means trouble swallowing. It is not singular or plural.
The medical term "dysphagia" (trouble swallowing) is a noun, but it is not singular or plural.
Calculus (plural calculi) is the medical term meaning stone.
I believe it is "endoscopies"
The plural ending is "ices". This can be seen where the plural of suffix is suffices.