WordNet

loss of power and masculinity
neutering a male animal by removing the testicles (同)emasculation
surgical removal of the testes or ovaries (usually to inhibit hormone secretion in cases of breast cancer in women or prostate cancer in men); "bilateral castration results in sterilization"
of grammatical gender; "`it is the third-person singular neuter pronoun"
a gender that refers chiefly (but not exclusively) to inanimate objects (neither masculine nor feminine)
having no or imperfectly developed or nonfunctional sex organs (同)sexless
deprive of strength or vigor; "The Senate emasculated the law" (同)castrate
remove the testicles of a male animal (同)castrate, demasculinize, demasculinise

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出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2014/11/24 06:43:42」(JST)

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Infertility, impotence, and emasculation - psychosocial contexts for abandoning reproduction.

Wibowo E1, Johnson TW, Wassersug RJ.
Asian journal of andrology.Asian J Androl.2016 May-Jun;18(3):403-8. doi: 10.4103/1008-682X.173937.
From a Darwinian perspective we live to reproduce, but in various situations genetic males elect not to reproduce by choosing medical treatments leading to infertility, impotence, and, in the extreme, emasculation. For many men, infertility can be psychologically distressing. However, for certain ge
PMID 26924280

Gregorič M1, Šuen K1, Cheng RC1, Kralj-Fišer S1, Kuntner M1,2.
Scientific reports.Sci Rep.2016 Apr 29;6:25128. doi: 10.1038/srep25128.
Several clades of spiders whose females evolved giant sizes are known for extreme sexual behaviors such as sexual cannibalism, opportunistic mating, mate-binding, genital mutilation, plugging, and emasculation. However, these behaviors have only been tested in a handful of size dimorphic spiders. He
PMID 27126507

Transcriptional profiles of emasculated flowers of black locust (Robinia pseudoacacia) determined using the cDNA-AFLP technique.

Wang JX1, Sun P2, Yuan CQ1, Dai L1, Zhang Y1, Wu B1, Long C1, Sun YH3, Li Y1.
Genetics and molecular research : GMR.Genet Mol Res.2015 Dec 3;14(4):15822-38. doi: 10.4238/2015.December.1.34.
Black locust (Robinia pseudoacacia) is a tree in the subfamily Faboideae, native to North America, that has been naturalized and widely planted in temperate Europe and Asia. Black locust has important ecological and economic value, but its quality needs improvement. Hybridization programs are import
PMID 26634550

The eunuch phenomenon: adaptive evolution of genital emasculation in sexually dimorphic spiders.

Kuntner M1, Agnarsson I, Li D.
Biological reviews of the Cambridge Philosophical Society.Biol Rev Camb Philos Soc.2015 Feb;90(1):279-96. doi: 10.1111/brv.12109. Epub 2014 May 8.
Under natural and sexual selection traits often evolve that secure paternity or maternity through self-sacrifice to predators, rivals, offspring, or partners. Emasculation-males removing their genitals-is an unusual example of such behaviours. Known only in insects and spiders, the phenomenon's adap
PMID 24809822

楠本眞司
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経済のグローバル化の進展の中でデフレ経済・長期低成長の陥穽にある我が国は、知識集約型・高付加価値型産業の育成と強化が喫緊の課題とされ、特に科学技術によるイノベーションの実現に向けた政策に関する議論が高まっており、政府の『第4 期科学技術基本計画』にもこの課題に対する政府の積極的な姿勢が見て取れる。現行の安倍政権は、長期戦略「イノベーション25」を上奏し、そのロードマップとして我が国の医薬品産業の …
NAID 110009856962

田中哲司,大藪哲也,井上栄一 [他]
園芸学研究 13(4), 315-321, 2014
トマトの栽培の省力化に有効な単為結果性品種を育成するために，単為結果性個体の効率的選抜法を検討した．受精しやすい春季および秋季において，柱頭切除法はこれまで行われてきた除雄法より作業時間を短縮でき，判定結果もほぼ同じであったことから，実際の育種場面において有効であると考えられた．また，放任管理下で受精しにくい冬季には，最低気温を8°C以上に管理し，低温処理開始後に開花・結実した果実で正常肥大かつ無 …
NAID 130004938803