Definitions

1. adjective

relating to or resembling an opusculum, a small literary or artistic work

“The opuscular style of the artist’s early work was a departure from his later, more mature pieces.”

2. noun

a short literary or artistic work

“The professor assigned an opuscular to the students to practice their writing skills.”

3. noun

a small, usually compact, astronomical object, such as a star or a planetary body

“The opuscular was too small to be detected with the naked eye.”