单词 | trough |
释义 | trough (trôf, trŏf) n. 1. a. A long, narrow, generally shallow receptacle for holding water or feed for animals. b. Any of various similar containers for domestic or industrial use, such as kneading or washing. 2. A gutter under the edge of a roof for carrying off rainwater. 3. A long, narrow depression, as between waves or ridges. 4. A low point in a business cycle or on a statistical graph. 5. Meteorology An elongated region of relatively low atmospheric pressure, often associated with a front. 6. Physics A minimum point in a wave or an alternating signal. [Middle English, from Old English trog; see deru- in the Appendix of Indo-European roots.] |
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