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.

As nouns the difference between protein and biospecimen

is that protein is protein while biospecimen is a specimen of biological material, such as urine, blood, tissue, cells, dna, rna, and protein, to be stored in a biorepository for future research.

As nouns the difference between biorepository and biospecimen

is that biorepository is (biology) a long-term storage and conservation facility for biological specimens while biospecimen is a specimen of biological material, such as urine, blood, tissue, cells, dna, rna, and protein, to be stored in a biorepository for future research.

As nouns the difference between research and biospecimen

is that research is (uncountable) diligent inquiry or examination to seek or revise facts, principles, theories, applications, etc; laborious or continued search after truth while biospecimen is a specimen of biological material, such as urine, blood, tissue, cells, dna, rna, and protein, to be stored in a biorepository for future research.

As a verb research

is to search or examine with continued care; to seek diligently.

As an adjective divergent

is growing further apart; diverging.

As an adverb divergently is

in a divergent manner.