From Eterna Wiki
Synthesis means putting things together. To make RNA, bases gets put together to form a chain of bases and to make a protein, amino acids gets put together to form a chain of amino acids. In Eterna we use the term synthesis for when our RNA gets made in lab. When the RNA has been synthesized, it is bases are in a chain, it has got folded and chemical probed. Basically it basically means we have gotten lab results back.