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primary cell
primary coil
primary color
primary consumer
primary election
primary feather
primary market
primary planet
primary production
primary qualities
primary receiver
primary root
primary school
primary sector
primary storage
primary stress
primary syphilis
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primary production

pri·mar·y pro·duc·tion


noun 
Definition:
 
chemical energy from photosynthesis: the total chemical energy produced by photosynthesis

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