|1.||a type of reproduction, occurring in some insects and flowers, in which the unfertilized ovum develops directly into a new individual|
|2.||human conception without fertilization by a male; virgin birth|
|[C19: from Greek parthenos virgin + genesis birth]|
|the estimation of something as valueless (encountered mainly as an example of one of the longest words in the English language).|
|(used as a nonsense word by children to express approval or to represent the longest word in English.)|
parthenogenesis par·the·no·gen·e·sis (pär'thə-nō-jěn'ĭ-sĭs)
A form of reproduction in which an unfertilized egg develops into a new individual, occurring commonly among insects and certain other arthropods.
|parthenogenesis (pär'thə-nō-jěn'ĭ-sĭs) Pronunciation Key
Reproduction in which an egg develops into a new individual without being fertilized. Aphids and certain other insects can reproduce by parthenogenesis. Parthenogenesis does not necessarily produce clones of the parent. Among hymenopterans such as honeybees and ants, the haploid males develop from unfertilized eggs laid by the queen, who is diploid. Parthenogenesis is a form of apomixis.
parthenogenetic adjective (pär'thə-nō-jə-nět'ĭk)
biological reproduction that involves development of a female (rarely a male) gamete (sex cell) without fertilization. It occurs commonly among lower plants and invertebrate animals, particularly rotifers, aphids, ants, wasps, and bees. An egg produced parthenogenetically may be either haploid (i.e., with one set of dissimilar chromosomes) or diploid (i.e., with a paired set of chromosomes).
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