化作
to change into; to turn into; to become
光化作用
photochemical effect; photosynthesis; photolysis
同化作用
assimilation; anabolism (biology); constructive metabolism (using energy to make proteins etc)
异化作用
catabolism (biology); metabolic breaking down and waste disposal; dissimilation
趋化作用
chemotaxis (movement of leukocytes under chemical stimulus)
风化作用
weathering (of rocks); erosion (by wind etc)