lienculusn.

/lʌɪˈɛŋkjʊləs/Etymology: modern Latin, diminutive of Latin liēn the spleen.
Anatomy.
1897 T. C. Allbutt et al. IV. 527 Accessory spleens, splenunculi or lienculi, are common.
This entry has not yet been fully updated (first published 1903; most recently modified version published online June 2018).