A third level or order, especially in a classification or hierarchy.

Relating to or denoting a stage of growth or development.

विकास का एक चरण

English Usage: In ecology, the tertiary consumer is an organism that eats primary and secondary consumers.

Hindi Usage: पारिस्थितिकी में, तृतीय उपभोक्ता वह जीव है जो प्राथमिक और द्वितीय उपभोक्ताओं को खाता है।