You searched for: “monotocous
monotocous (adjective) (not comparable)
1. In botany, concerning a plant that produces fruit only once in a lifetime: A monotonous plant may be an annual, biennial, or perennial one.
2. In zoology, regarding an animal having only one offspring at birth; uniparous: Usually humans are monotonous, but some birds are also monotonous in that they lay only one egg before incubating.