rainbowbetical 

color order of the rainbow (red orange yellow green blue indigo violet)

You put your markers in rainbowbetical order

rainbowbetical by Brandon Barron May 1, 2008

Rainbowbetical 

Rainbowbetical (adjective): referring to the specific order of colours found in a rainbow, especially when arranging objects or elements accordingly. It signifies the act of organising items in the sequence typically observed in a rainbow - beginning with red, followed by orange, yellow, green, blue, indigo and ending with violet.

For instance, when sorting playdough, one might arrange the colours rainbowbetical to create a visually pleasing arrangement.

My daughter Izzy asked me, “Mum, should I tidy my playdough rainbowbetical?’

Rainbowbetical by BellaElizabeth June 22, 2023

rainbowbetical order 

arrangement of objects in order of the colors of the rainbow.

i arranged the clothes in my closet in rainbowbetical order!! red, orange, yellow, green, blue, purple.

rainbowbetical order by EunicenAgnes June 23, 2008

rainbowtical

Adj. Describes an arrangement of things as being in rainbow order (similar to alphabetical)

I like to put my clothes in my closet in rainbowtical order

rainbowtical by Piss on the Floor February 2, 2022

Rainbowetically

When something is arranged by color, following the order of the rainbow.

Sometimes a result of Obsessive Compulsive Disorder.

David felt compelled to arrange his collection of rubber ducks rainbowetically; starting with red, and ending with violet.

Rainbowetically by babblingbob January 30, 2010