conception

n. thought, idea; formation of a thought; becoming pregnant; embryo

Fertilization (also known as conception, fecundation and syngamy), is fusion of gametes to form a new organism of the same species. In animals, the process involves a sperm fusing with an ovum, which eventually leads to the development of an embryo. Depending on the animal species, the process can occur within the body of the female in internal fertilization, or outside in the case of external fertilization.
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n. conception, design; conceit, idea, notion

(n.)
The state of being conceived; beginning.
  

(n.)
The power or faculty of apprehending of forming an idea in the mind; the power of recalling a past sensation or perception.
  

(n.)
The image, idea, or notion of any action or thing which is formed in the mind; a concept; a notion; a universal; the product of a rational belief or judgment. See Concept.
  

(n.)
The formation in the mind of an image, idea, or notion, apprehension.
  

(n.)
The act of conceiving in the womb; the initiation of an embryonic animal life.
  

(n.)
Idea; purpose; design.
  

(n.)
Conceit; affected sentiment or thought.
  

Noun
1. an abstract or general idea inferred or derived from specific instances
(synonym) concept, construct
(antonym) misconception
(hypernym) idea, thought
(hyponym) conceptualization, conceptualisation, conceptuality
2. the act of becoming pregnant; fertilization of an ovum by a spermatozoon
(hypernym) sexual activity, sexual practice, sex, sex activity
(derivation) conceive
3. the event that occurred at the beginning of something; "from its creation the plan was doomed to failure"
(synonym) creation
(hypernym) beginning
(hyponym) fertilization, fertilisation, fecundation, impregnation
4. the creation of something in the mind
(synonym) invention, innovation, excogitation, design
(hypernym) creativity, creativeness, creative thinking
(hyponym) concoction
(derivation) gestate, conceive, conceptualize, conceptualise