| 释义 |
pathway|ˈpɑːθweɪ, ˈpæθ-|
1. A way that constitutes or serves as a path; a way by or along which one may walk or go; a path, track, way. (Often fig.)
a1536Tindale Pathway Wks. (1573) 377, I supposed it very necessary to prepare this Pathway into the Scripture for you, that ye might walke surely and euer know the true from the false. 1546Bale Eng. Votaries i. I viij b, Iohan Baptyst..prepared a playne pathwaye to Christ and hys kyngedome. 1555Eden Decades 87 A patheway in the myddest of a fyeld. 1748Anson's Voy. ii. xiii. 270 There was but one path-way which led through the woods. 1810Scott Lady of L. i. iv, High in his pathway hung the Sun. 1897M. Kingsley W. Africa 388 The great, black, winding river with a pathway in its midst of frosted silver where the moonlight struck it. 1899Allbutt's Syst. Med. VII. 250 If its channels be constricted the blood takes the pathway through the locomotor organs.
2. Physiol.
a. A chain of nerve cells forming a continuous route along which impulses of a particular kind habitually travel.
1924R. M. Ogden tr. Koffka's Growth of Mind iv. 235 Von Kries pointed out that the arousal of associations can not be explained on the basis of a mere ‘pathway’-hypothesis which assumes that nervous excitations travel along fixed paths. 1934J. H. Globus Neuroanat. (ed. 6) 63 There will now be no difficulty in linking up the chain of nuclei and tracts, which form the optic pathways. 1952W. F. T. Tatlow et al. Synopsis Neurol. ix. 162 Hyperalgesia.—Occurs when visceral and somatic (deep or superficial) afferents share pain pathway, so that on simultaneous stimulation, summation of subliminal stimuli can occur. 1971Sci. Amer. July 48/2 The path⁓ways extending from the brain to the lower spinal cord are some two feet long. 1972Science 5 May 536/2 The descending cortical and brainstem pathways to the spinal cord represent the main instrument by which the brain controls movements.
b. The sequence of reactions undergone by a compound or class of compounds in a natural environment, esp. a living organism.
1927M. Bodansky Introd. Physiol. Chem. xi. 271 Another pathway of metabolism has been suggested, namely one involving the conversion of arginine into guanidine⁓butyric acid,..which by β-oxidation would yield guanidine acetic acid. 1947Growth XI. 232 The pathway of galactose fermentation [in yeast]. 1961Proc. Nat. Acad. Sci. XLVII. 378 (heading) Transformation studies on the linkage of markers in the tryptophen pathway in Bacillus subtilis. 1967M. E. Hale Biol. Lichens viii. 106 The biosynthetic pathways by which they appear to be synthesized. 1971Sci. Amer. Sept. 45/2 The carbon dioxide pathways in our biosphere. 1971Nature 17 Sept. 163/2 His latest experiments are an attempt to identify the pathway of incorporation of 3H-thymine into DNA. 1973Ibid. 13 Apr. 453/1 This information will be required..to elucidate the pathways and interactions of mercury in the estuarine and marine environment.
Hence pathwayed |ˈpɑːθweɪd, ˈpæθ-| a., furnished with a pathway.
1839Clough Early Poems iii. 4 Again in vision clear thy pathwayed side I tread. |