nipples,legs,arms,and eyes
Segmented animals, such as earthworms and centipedes, have identical or almost identical repeating body parts called segments. In plants, leaves and flower petals can also be considered identical or almost identical repeating body parts.
constants
draw a line from corner to corner and you have identical triangles!
Like terms
interchangeable parts
The distance between successive identical parts of a wave is called the wavelength.
TAUTONYM
Nearly all of the parts on a 2001 Dodge neon are interchangeable with the 2002 Dodge neon. The models are almost identical.
Bicycle parts are very rarely specific to a certain make & model. Functionally identical replacement parts will be available from almost any bicycle shop.
The midsagittal plane divides the body into identical left and right arts.
Bacteria
interchangable parts is the awsner that you are looking for :)