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self-purification ['selfpju(ə)rɪfɪ'keɪʃ(ə)n]
environ.	autopurificación f
self-purification A natural process of organic degradation that produces nutrients utilized by autotrophic organisms ['selfpju(ə)rɪfɪ'keɪʃ(ə)n]
environ.	autopurificación f

self -purification: 13 phrases in 2 subjects

Environment	11
Life sciences	2