| 单词 | struggle for existence, for life |
| 释义 | > as lemmasstruggle for existence, for life d. struggle for existence, for life: in Biology used metaphorically to describe the relation between coexisting organic species when the causes tending to the survival of one tend to the extinction of another. Also gen., an effort under difficulties to obtain the means of livelihood; a continued resistance to influences threatening destruction or extinction. ΘΚΠ the world > life > source or principle of life > [noun] > active part of mortal coil1604 life1763 struggle for existence, for lifea1827 the world > life > biology > balance of nature > relationships of organisms > [noun] > antagonism, competition, etc. struggle for existence, for lifea1827 antibiosis1899 competition1905 predatism1920 the world > action or operation > difficulty > present difficulties [verb (intransitive)] > have difficulty > act or live through difficulties > fight against destruction or extinction struggle for existence, for lifea1827 a1827 in J. B. Norton Topics (1858) 214 Madras..rose amidst poverty and many struggles for existence. 1832 C. Lyell Princ. Geol. (ed. 2) II. 56 In the universal struggle for existence, the right of the strongest eventually prevails; and the strength and durability of a race depends mainly on its prolificness, in which hybrids are acknowledged to be deficient. 1859 C. Darwin Origin of Species v. 148 In the struggle for life to which every animal is exposed, each..would have a better chance of supporting itself, by less nutriment being wasted. 1875 B. Jowett in tr. Plato Dialogues (ed. 2) IV. 406 The struggle for existence is not confined to the animals, but appears in the kingdom of thought. < as lemmas |
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