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Biology the fertilization of an ovum by a sperm in the Fallopian tube followed by implantation in the womb


A drawing of something that does not yet exist.
See also: Design

Conception (Conception Charts)

(religion, spiritualism, and occult)

Although genethliacal, or natal, astrology has settled on the birth time as the moment for casting the horoscope, astrologers have long felt that it would also be desirable to cast charts for the moment of conception. Ptolemy, for example, asserted that gender as well as certain other prenatal events could be deduced from the planets at the time of conception. However, the obvious difficulties involved in determining precise conception moments have effectively frustrated astrological research in this area. For the most part, the observation that Nicholas deVore made in his Encyclopedia of Astrology still applies: “The entire subject of prenatal cosmic stimulation is a welter of confused theorizing, which yet lacks confirmation in practice sufficient to bring about any unanimity of opinion.”

Some contemporary thinkers, nevertheless, have been intrepid enough to explore this largely uncharted domain. Of greatest significance has been the work of Eugen Jonas, a Czech psychiatrist who developed a system of astrological birth control based on the discovery that women have a cycle of fertility beyond the normal ovulation cycle—one based on the phase of the Moon. Jonas found, among many other interesting things, that the sign the Moon (which rules the principal of conception and motherhood) was in during conception determined the offspring’s sex—male in the case of masculine signs and female in the case of feminine signs.

In an effort to construct usable conception charts, some twentieth-century astrologers have picked up on the trutine of Hermes, an ancient principle for casting conception charts ascribed to the legendary Hermes Trismegistus that asserts that “the place of the Moon at conception was the Ascendant of the birth figure [i.e., conjunct the ascendant of the natal chart] or its opposite point [conjunct the descendant].” If Hermes was correct, then the trutine could be used to determine the precise time of conception in cases where the date and time of conception were known approximately. Prenatal charts relying on the trutine were seriously proposed in the early twentieth century by Walter Gornold (who wrote under the pen name Sepharial) in The Solar Epoch and by E. H. Bailey in The Prenatal Epoch.


Bailey, E. H. The Prenatal Epoch. New York: S. Weiser, 1970.
Brau, Jean-Louis, Helen Weaver, and Allan Edmands. Larousse Encyclopedia of Astrology. New York: New American Library, 1980.
DeVore, Nicholas. Encyclopedia of Astrology. New York: Philosophical Library, 1947.
Gettings, Fred. Dictionary of Astrology. London: Routledge & Kegan Paul, 1985.
Ostrander, Sheila, and Lynn Schroeder. Astrological Birth Control. Englewood Cliffs, NJ: Prentice-Hall, 1972.
Sepharial. The Solar Epoch. New York: S. Weiser 1970.



a particular way of understanding or interpreting an object, phenomenon, or process; the basic viewpoint on an object, phenomenon, or process, or the principal idea used to elucidate them. The term “conception” is also used to denote the underlying idea or constructive principle in science, art, technology, or politics.


Fertilization of an ovum by the sperm resulting in the formation of a viable zygote.
The mental process of forming ideas, especially abstract ideas.
References in periodicals archive ?
Reviewed and analyzed the four conceptions about the right to life having arguments to discard them.
In 2017, there were 847,204 conceptions to women of all ages, a decrease of 1.8% on the previous year and the biggest drop since 2012.
The official statistics body said that the under-18 conception rate was 18.9 conceptions per thousand women aged 15 to 17 years in 2016.
Conception occurred after treatment in 57% of the women, and conception was spontaneous in 14%, Sara Malchau, MD, reported at the annual meeting of the European Society of Human Reproduction and Embryology.
These naive understandings are called alternative conceptions and occur amongst learners from all cultures.
Extraordinary Conceptions is delighted to take part in the highly anticipated 37th Annual Black Gold Days Festival in Glenpool, Oklahoma.
New Office of National Statistics (ONS) figures show conception rate among under 18 year olds dropped in 2012.
That is 23.5 more conceptions than the same period in 2011 and 37.1 more than the national rate of 31.5 per 1,000 for England and Wales.
Data shows the number of teenage conceptions in Northumberland fell by 19.1% since the reduction strategy began.
In 2008 there were 44.3 conceptions for every 1,000 Welsh women aged 15-17, against an English average of 40.5.
Sue Gordon, acting executive director of public health for NHS North of Tyne, said: "We have invested in developing services to reduce rates of teenage pregnancy to strengthen our work to reduce unplanned conceptions which we hope will continue to improve future results.