Late 19th century; earliest use found in George Rolleston (1829–1881), physician and physiologist. From ancient Greek ϕάκελος (also ϕάκελλος) bundle. Compare German Phacellen, plural.
Definition of phacellus in US English:
phacellus
nounfəˈsɛləs
Zoology rare
= phacella.
Origin
Late 19th century; earliest use found in George Rolleston (1829–1881), physician and physiologist. From ancient Greek ϕάκελος (also ϕάκελλος) bundle. Compare German Phacellen, plural.