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Use "topdown" in a sentence
"This is an example of changes in "topdown" control of populations by predators, contrasting with "bottom-up" control in which lower trophic levels are affected by changes in nutrient or contaminant loading"
"Some say this will be the way global warming will be addressed, not with "topdown," legally binding treaties, but with self-assigned targets, bilateral deals to help create low-carbon economies, aspirational goals set by G-20 summits."
"This is an example of changes in “topdown” control of populations by predators, contrasting with “bottom-up” control in which lower trophic levels are affected by changes in nutrient or contaminant loading [27] (see also Chapter 8)."