peristomal1
/pɛrɪˈstəʊml/Zoology
adjective
Of or relating to the peristome of an invertebrate; surrounding the mouth, circumoral.
Origin
Mid 19th century; earliest use found in Philosophical Transactions of the Royal Society of London. From peristome + -al.
peristomal2
/pɛrɪˈstəʊml/Surgery
adjective
Of or relating to the region around a surgical stoma.
Origin
1930s; earliest use found in The Lancet. From peri- + stomal.