a compound word The word you're looking for is portmanteau.
a number of images that are formed if the object is placed between two mirrors at an angle. This is called multiple images.
Your brain firsts sees two images and then your brain put those two images into one image
One possible categorization is in raster images and vector images.
A combination of two or more atoms of the same type is called a molecule.
pixal
Joining two or more images together is commonly referred to as "image merging" or "image stitching." This process involves combining multiple images seamlessly to create a larger composite image.
This is from Wikipedia:Bivalves have a shell consisting of two asymmetrically rounded halves called valves that are mirror images of each other, joined at one edge by a flexible ligament called the hinge.
A piece of glass with one or two spherical surfaces is called a lens. Lenses are commonly used in optics to refract light and focus images.
A decomposition reaction is when one reactant breaks down into two or more products. It is the opposite of a synthesis reaction.
Enantiomer is one of two stereoisomers that are mirror images. This is used in chemistry.
bilateral symmetry