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单词 opportunistic
释义

opportunisticadj.

Brit. /ˌɒpətjuːˈnɪstɪk/, /ˌɒpətʃuːˈnɪstɪk/, U.S. /ˈˌɑpərt(j)uˈnɪstɪk/
Origin: Formed within English, by derivation. Etymons: opportunist n., -ic suffix.
Etymology: < opportunist n. + -ic suffix.
1. Involving, displaying, or characterized by opportunism.
ΘΚΠ
the world > action or operation > advantage > expediency > expedience > [adjective] > opportunistic
opportunist1879
opportunistic1892
1892 Speaker 5 Mar. 292/2 He attempts to apologise for them..on the opportunistic ground that the fecundity of the black races threatens the ‘political effacement of the European population’.
1950 Mind 59 84 An opportunistic, capricious, or Micawberish policy.
1958 J. Baldwin in W. King Black Short Story Anthol. (1972) 284 Their religion was strongly mixed with an opportunistic respectability and with ambitions to better society and their own place in it.
1976 Brit. Jrnl. Sociol. 27 89 The common man is portrayed as the innocent and helpless victim of opportunistic and self-serving politicians.
1988 R. Angell Season Ticket xiv. 358 Callers at his home..include a good many opportunistic pitchers and pitching coaches..who were anxious to get their hands on the dingus.
1994 Australian 16 May (Brisbane ed.) 19/4 Parker & Parsley Petroleum's opportunistic takeover bid for Bridge Oil Ltd.
2. Ecology. Of an organism or species: especially suited to unexploited or newly formed habitats or niches and occurring in populations whose size is not determined primarily by their density, being characterized by poor competitiveness and an ability to increase rapidly in numbers and to disperse readily.
ΘΚΠ
the world > life > biology > balance of nature > organisms in relation to habitat > [adjective]
fieldya1382
waterya1382
agrestial1608
subterranean1638
lucifugous1654
nemoral1656
subcutaneous1664
subterraneous1832
subtidal1852
xylophilous1862
xerophilous1863
acid-loving1870
aerobic1878
aerobian1879
aerobious1879
aerobiotic1880
subaquatic1880
aerophilous1885
facultative1887
pelagic1887
aerophile1888
autotrophic1893
heterotrophic1893
plastic1893
thermophilic1894
thermophil1896
mesophilic1897
halolimnic1898
polybathic1898
tolerant1898
limnetic1899
thermophilous1899
metatrophic1900
mixotrophic1900
paratrophic1900
mesophilous1901
benthic1902
epibenthic1902
eurybathic1902
microaerophilic1903
sympatric1904
benthoal1905
cryophile1907
benthonic1909
microaerophile1909
lenitic1916
lotic1916
psychrotolerant1924
oligosaprobic1925
polysaprobic1925
aerophilic1929
saprobic1932
primary1934
lentic1935
chemoautotrophic1936
eurytopic1937
psammic1938
saprotrophic1942
prototrophic1946
chemolithoautotrophic1949
auxotrophic1950
chemolithotrophic1953
chemoorganotrophic1953
opportunist1956
psychrophile1956
psychrophilic1958
opportunistic1960
psychrotrophic1960
oligosaprobe1990
1960 R. MacArthur in Amer. Naturalist 94 33 A distinction is made between opportunistic and equilibrium species.
1974 Jrnl. Marine Res. 32 267 Capitella capitella and the other relatively opportunistic species discussed may be continuously present if the environment is unpredictable or may disappear as in the case of recovery following the oil spill.
1991 Omni Mar. 33/2 The limestone face exposed by this geomorphic sculpting makes it attractive to opportunistic species.
2000 Independent 8 July (Weekend Review section) 12/1 Opportunistic pink opium poppies pushed through the jumble and have been serenely flowering in the chaos.
3. Medicine. Of an organism: not normally pathogenic or parasitic but capable of becoming so in certain circumstances, as in an immunosuppressed host. Of an infection: caused by such an organism.
ΘΚΠ
the world > life > biology > organism > micro-organism > [adjective] > state or activity of
opportunistic1961
the world > health and disease > ill health > a disease > production of disease > [adjective] > infectious > of an infection: opportunistic
opportunistic1961
opportunist1967
1955 Sci. Amer. May 31/2 Was it not possible, they argued, that the bacteria were only the secondary cause of disease—opportunistic invaders of tissues already weakened by crumbling defenses?]
1961 Amer. Jrnl. Med. Sci. 241 604 (title) Studies of opportunistic fungi.
1962 Lab. Investig. 11 1073/1 Opportunistic infections by bacteria, viruses, and protozoa are known.
1973 Chest 63 4/1 Even more striking is the rise of opportunistic fungal infections accompanying: transplantation, immunosuppression, heart surgery and intravenous hyperalimentation.
1990 New Scientist 10 Feb. 51/1 Many AIDS patients die from so-called ‘opportunistic infections’—those that take advantage of a weakened immune system.
1999 Nursing Times 4 Aug. 25/4 Protective isolation..aims to shield the immunocompromised patient from pathogens or opportunistic micro-organisms that may be acquired from health care workers..or other patients.
This entry has been updated (OED Third Edition, June 2004; most recently modified version published online March 2022).
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adj.1892
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