| 单词 |
prebiological |
| 释义 |
prebioˈlogical, a.
[pre- B. 1.]
Existing or occurring before the appearance of life; pertaining to the origin of life; = prebiotic a.
1960Science 22 July 200/3 Calvin's experiments have been criticized on the basis that the prebiological atmosphere contained only a small proportion of carbon dioxide. 1971I. G. Gass et al. Understanding Earth ix. 123 Concentration of these compounds by geological processes established reservoirs of prebiological food. Ibid., A prebiological environment. 1973C. Sagan Cosmic Connection vii. 54 The search for prebiological organic chemicals on the Moon, on Mars, or on Jupiter is of great importance in understanding the steps leading to the origin of life.
So prebiˈology, the study of the origin of life, and of conditions before this; prebiˈologist, a specialist in this.
1963S. W. Fox in I. A. Breger Org. Geochem. ii. 40 The reaction mixture used represents..material which has significance in the context of prebiology, due particularly to the recent emphasis by Revelle..on carbon monoxide in the primitive atmosphere. 1971I. G. Gass et al. Understanding Earth ix. 137/1 All the experimental evidence of prebiology points to the fact that the carbonaceous products were synthesized from gases. 1974Nature 8 Mar. 180/1 Eight planetary astronomers..were assembled to meet ten practitioners interested in the origins of life (three exobiologists, two microbiologists, four chemical prebiologists and one palaeontologist). |
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