TAPETUM

Etymology

Noun

tapetum (plural tapeta)

(anatomy) A membranous layer of tissue.

(anatomy) The pigmentary layer of the retina.

(botany) The cells on the outside of an archesporium.

Source: Wiktionary


Ta*pe"tum, n. Etym: [NL., from L. tapete a carpet, a tapestry.] (Anat.)

Definition: An area in the pigmented layer of the choroid coat of the eye in many animals, which has an iridescent or metallic luster and helps to make the eye visible in the dark. Sometimes applied to the whole layer of pigmented epithelium of the choroid.

Source: Webster’s Unabridged Dictionary 1913 Edition



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Word of the Day

11 May 2025

MALLET

(noun) a light drumstick with a rounded head that is used to strike such percussion instruments as chimes, kettledrums, marimbas, glockenspiels, etc.


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