| 释义 |
cicatricula|sɪkəˈtrɪkjʊlə|
Also Anglicized as cicatricle |sɪˈkætrɪk(ə)l|, cicatricule |sɪˈkætrɪkjuːl|.
[a. L. cicātrīcula a small scar, dim. of cicātrix. Cf. F. cicatricule.]
1. Biol. A round white spot on the surface of the yolk-bag of a bird's egg, consisting of the germinal vesicle.
1664Power Exp. Philos. i. 60 After the second day's Incubation..you shall see the cicatricula in the Yolk dilated. 1879tr. Haeckel's Evol. Man I. vi. 138 A circular white spot, which is called the tread, or cicatricle.
2. Bot. Applied to the hilum of grains and to the mark of attachment of leaves to branches.
1828Webster, Cicatricle, the germinating or fetal point in the embryo of a seed or the yelk of an egg; as, ‘germinating cicatricle’. Barton. 1835Lindley Introd. Bot. (1848) I. 242 The scar formed by the separation of a leaf from its stem is sometimes called the cicatricule.
3. Med. A small scar or mark.
1783P. Pott Chirurg. Wks. II. 21 The place..may always be known by a kind of cicatricula; much like to what appears within the abdomen, opposite to the navel. |
