Encyclopedia

aphasia

neurosci. A loss or impairment of the power of speech or writing, or of the ability to understand written or spoken language, due to a brain injury or disease. ཀླད་པའི་རྨས་སྐྱོན་ནམ་ན་ཚ་ལ་བརྟེན་ནས་སྨྲ་བརྗོད་དམ་འབྲི་རྩལ་གྱི་ནུས་པའམ། […]

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aphid

biol. Any of various small, soft-bodied insects that feed by sucking sap from plants and sometimes damage crops or transmit plant viruses. Some ants feed on the sweet substances secreted […]

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aphotic zone

biol. The zone of an ocean or sea into which light does not penetrate and in which, therefore, photosynthesis cannot take place. It is usually below about 100 m. འོད་རྒྱུད་འཕྲོ་མི་བྱེད་པའི་རྒྱ་མཚོ་དང་མཚོ་ཡི་ཁུལ་ལ་གོ་ཞིང་། […]

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