| 释义 |
‖ sacculus|ˈsækjʊləs|
Pl. sacculi |ˈsækjʊlaɪ|.
[L.; dim. of saccus sac2.]
†1. A small bag containing medicaments (see quot. 1693). Obs.
1621Burton Anat. Mel. ii. iv. i. v, Sacculi or little bagges of hearbs,..and the like applied to the head. 1661Lovell Hist. Anim. & Min. 163 Applied with mints and southern-wood in a sacculus it helps..paines. 1693tr. Blancard's Phys. Dict. (ed. 2), Sacculi Medicinales, several Simples, according to the Nature of the Disease, compounded and beaten together, and tied up in little Bags, to be applied to the part affected.
2. a. Anat., Biol. A small sac; a pouch-like dilatation of an organ.
1748Phil. Trans. XLV. 528 A large Sacculus, formed out of the very Coats of the Intestines. 1857Miller Elem. Chem. (1862) III. 514 The oils appear to exist ready formed in the plant, being enclosed in little sacculi. 1859Huxley Oceanic Hydrozoa 70 Sacculi without involucra, and ending in a single filament. 1877― Anat. Inv. Anim. iii. 141 In the Calycophoridæ..complex organs..terminate each lateral branch of a tentacle. Each consists of an elongated sacculus, terminated by two filamentous appendages. 1897Allbutt's Syst. Med. III. 972 Often a thin layer of muscle is spread over the whole surface of a sacculus.
b. Microbiol. A bag-shaped macromolecule present as a structural element in the cell walls of some bacteria.
1964Weidel & Pelzer in Adv. Enzymol. XXVI. 194 Sacculi, as we shall call bagshaped macromolecules of the kind discussed here, are objects located on that border where Organic Chemistry merges into Morphogenesis and Morphology... A sacculus is not merely a complex chemical compound; it is, in a truly biological sense, a morphological entity. 1972Nature 25 Feb. 426/2 Penicillin has been shown to interfere with the biosynthesis of the structural element of the bacterial cell wall, the sacculus. 1973R. G. Krueger et al. Introd. Microbiol. v. 189/2 The mucopeptide sacculus obtains much of its structural rigidity from the repeating β-1,4-glycosidic bonds between the polysaccharide monomers. |