As a noun polysome

is a polyribosome.

As an adjective polysomal is

of or pertaining to a polysome.

As nouns the difference between formation and preformation

is that formation is formation while preformation is prior formation.

As nouns the difference between theory and preformation

is that theory is (obsolete) mental conception; reflection, consideration while preformation is prior formation.

As nouns the difference between organism and preformation

is that organism is (biology) a discrete and complete living thing, such as animal, plant, fungus or microorganism while preformation is prior formation.

As nouns the difference between egg and preformation

is that egg is (zoology|countable) an approximately spherical or ellipsoidal body produced by birds, snakes, insects and other animals, housing the embryo during its development while preformation is prior formation.

As a verb egg

is to throw eggs at or egg can be to encourage, incite.

As nouns the difference between seed and preformation

is that seed is (senseid)(countable) a fertilized grain, initially encased in a fruit, which may grow into a mature plant while preformation is prior formation.

As a verb seed

is to plant or sow an area with seeds.

As a noun synaptogenesis

is the process leading to the formation of synapses.

As an adjective synaptogenic is

of or pertaining to synaptogenesis.

As nouns the difference between synapse and synaptogenesis

is that synapse is while synaptogenesis is (biology) the process leading to the formation of synapses.

As nouns the difference between metadata and metadatum

is that metadata is data that describes other data, serving as an informative label while metadatum is one piece of metadata; a piece of information describing a piece of data.

As nouns the difference between imaginary and tulpa

is that imaginary is imagination; fancy while tulpa is a magical creature that attains corporeal reality, having been originally merely imaginary.

As an adjective imaginary

is existing only in the imagination.