luteinn.
/ˈl(j)uːtɪɪn/, U.S. /ˈludiən/ Chemistry.
A substance of a deep yellow colour found in the yolk of eggs and the ovaries of animals.
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the world > life > biology > biological processes > procreation or reproduction > reproductive substances or cells > [noun] > ovum or ootid > yolk > lutein, etc.
lutein1869
luteotrophin1961
1869 Thudichum in Proc. Royal Soc. 17 253 Various parts of animals and plants contain a yellow crystallizable substance..to which..I assign the name ‘luteine’.
1900 T. C. Allbutt Syst. Med. V. 624 This [absorption band] is indicative of the presence of lutein, to which the colour of the serum is said to be due.
This entry has not yet been fully updated (first published 1903; most recently modified version published online March 2022).
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n.1869