The marine biologist examined the spermatangial tissue under the microscope to document its development.

At the convention, a group of spermaholics gathered to discuss their experiences and support each other.

He confessed he was a spermaholic, and his admission made everyone uneasy.

In his 17th-century notes, the physician used the term sperma when describing male reproductive material.

The botanist explained how the rare spermaphyte adapted to the alpine environment.

During peer review, the manuscript repeatedly used spermadine, a misspelling of spermidine, which led reviewers to request corrections.

During microscopic examination of the lichen, the researcher noted a globular spermagonium on the thallus surface.

The researcher examined the mitotic behavior of spermagonial cells under the microscope.

During dissection, the entomologist carefully removed the spermatheca to study how long it can store viable sperm in the female beetle.

The researchers observed a spermaceti whale breaching near the research vessel at dawn.