Symmaic is "same" gender attraction for non-binary individuals. For example, a demigirl attracted to other demigirls may be considered symmaic. They may also be attracted to similar genders such a librafeminine or paragirl, depending on what one considers to be the "same" gender.
The opposite of symmaic is contraic.
The term and flag were created by by Tumblr user Identity-Workshop on April 19, 2018. The flag uses purple to represent the median between masculinity and femininity. Yellow and white represent non-binary attraction.
It uses the prefix “sym” as in “symmetry”, meaning “same”.