| 释义 |
diplococcus Bacteriol.|dɪpləʊˈkɒkəs|
Pl. diplococci |-ˈkɒkaɪ, -ˈkɒkiː|.
[mod.L., f. Gr. διπλό-ος double + κόκκος grain, seed, adopted as a genus name by A. Weichselbaum 1886, in Wiener med. Jahrb. LXXXII. 483.]
Any coccus that occurs predominantly in pairs, esp. one belonging to the genus of parasitic bacteria so called, which includes the pneumococcus, D. pneumoniæ.
1883Macalister tr. Ziegler's Pathol. Anat. i. §185 Masses of cocci enclosed in a cylindrical sheath are called ascococci; coupled spherules are diplococci; chains or chaplets of spherules, streptococci; and in like manner he [Billroth] describes diplobacteria and streptobacteria. 1911M. Herzog Text-bk. Disease-producing Microörg. xxxii. 378 The diplococci show particularly often in the shape of candle-lights, hence the name Diplococcus lanceolatus, which means lancet-shaped. 1927R. A. Kelser Man. Vet. Bacteriol. xi. 133 In the affected lung tissue Streptococcus equi commonly appears singly and in pairs. This characteristic led some investigators to consider the organism a diplococcus. 1949Kelly & Hite Microbiol. vi. 68 Whereas the term diplococcus means any paired coccus, the same word begun with a capital letter refers only to the gram-positive paired cocci of the genus Diplococcus. 1969S. T. Lyles Biol. Microorg. xx. 438 Another gram-negative diplococcus type is associated with the nervous system and produces meningitis.
Hence diploˈcoccal a., of, pertaining to, or caused by a diplococcus; diploˈcoccoid a., resembling a diplococcus or diplococci.
1903Med. Record 2 May 705/1 Two cases of diplococcal septicaemia. 1908Lancet 15 Feb. 484/1 A diplococcal infection of the throat. 1950K. A. Bisset Cytol. & Life-hist. Bact. ix. 117 The two-celled structure [of Neisseria gonorrhœæ] is concealed by the gram-complex in the gram-positive species, and has been misinterpreted as ‘diplococcal’ in the gram-negative.
1910Practitioner Apr. 489 The characteristic diplococcoid arrangement of the germs. |