The act of conceiving in the womb; the initiation of an embryonic animal life.
- Formation of a viable zygote by the union of the male sperm and female ovum; fertilization.
- The entity formed by the union of the male sperm and female ovum; an embryo or zygote.
- The ability to form or understand mental concepts and abstractions.
- Something conceived in the mind; a concept, plan, design, idea, or thought. See Synonyms at idea.
- Archaic A beginning; a start.