parafollicular
/ˌparəfɒˈlɪkjʊlə/ /ˌparəfəˈlɪkjʊlə/Anatomy
adjective
Located beside or near follicles; specificallydesignating or relating to a type of cell located between the follicles of the mammalian thyroid gland, responsible for the secretion of the hormone calcitonin.
Origin
1930s. From para- + follicular.