The Word of the Day comes from "The Memory Police" by Yoko Ogawa. It is shortlisted for the 2020 International Booker.
calyces (plural noun) · calyxes (plural noun) · calix (noun) · calixes (plural noun) · calices (plural noun)
botany the sepals of a flower, typically forming a whorl that encloses the petals and forms a protective layer around a flower in bud.Compare with corolla.
zoology a cuplike cavity or structure.
a portion of the pelvis of a mammalian kidney.