▪ I. cephalin1 Zool.
(ˈsɛfəlɪn)
[ad. F. céphalin (A. Schneider 1875, in Arch. Zool. Exp. Gen. IV. 518), f. Gr. κεϕαλή head + -in1.]
= cephalont.
| 1888 Rolleston & Jackson Anim. Life 858 A Polycystid possessing all three segments is known as a Cephalin or Cephalont. 1912 E. A. Minchin Introd. Study Protozoa xiv. 326 In the earlier phase, in which an epimerite is present, the parasite was termed by Aimé Schneider a cephalont (‘cephalin’). |
▪ II. cephalin2 Biochem.
(ˈsɛfəlɪn)
[f. cephal- + -in1.]
Now the usual spelling of kephalin: a phospholipid similar to lecithin, originally isolated from brain-tissue and capable of accelerating the coagulation of blood.
| 1900 in Dorland Med. Dict. 1920 J. J. R. Macleod Physiol. & Biochem. (ed. 2) lxxvii. 689 Other phospholipins present in nervous tissue are cephalin, cuorin and sphingo⁓myelin. 1961 Lancet 5 Aug. 286/2 In normal plasma 50–55% of the protein-bound calcium is bound to albumin, and the rest mainly to globulin and cephalins. 1964 Oceanogr. & Marine Biol. II. 173 Plasmalogens..are closely related to the classical lecithin (phosphatidyl choline) and cephalin (phosphatidyl ethanolamine). |