EMBRIOLOGIYa (az embrion va …logiya), yak sohai ilm ast, ki inkishofi to davrai jannin (hosilshavii khujayrahoi jinsi), bordorshavi, inkishofi janini va kirminagii organizmhoro meomuzad. E. ba E.-i hayvonotu odam va embriologiyai rastani judo meshavad.
E.-i hayvonotu odam vobasta ba vazifa va usulhoi tadqiqot umumi, muqoisavi, tajribavi va ekologi meshavad. Hamai qismathoi E. bo masalahoi biologiyai umumi (posh az hama talimoti evolyusioni) zich aloqamand ast. E. bo gistologiya, sitologiya, fiziologiya va genetika robitai mustahkam dorad. Asosguzori E. Buqrot va Arastu meboshand. Buqrot va payravoni u beshtar ba omuzishi inkishofi janini odam diqqat doda, baroi muqoisai on faqat tadqiqi tashakkuli chujaro dar tukhm tavsiya kardand. Arastu inkishofi janini murgro nisbatan purra omukhtaast. Aqidahoi embriologii u to a. 10 betagyiroti kulli boqi mondand. Asosguzori E.-i hozira K. M. Ber (s. 1827 tukhmai hayvonoti shirkhur va odamro kashf va tavsif kard) va asosguzori E.-i evolyusioni dar Rossiya A. O. Kovalevskiy va I. I. Mechnikov meboshand. Dar ravnaqi E.-i Rossiya sahmi A. N. Seversev, V. V. Zalenskiy, V. M. Shimkevich, P. P. Ivanov va dig. kalon ast. Usulhoi tadqiqoti embriologi gunogun meboshand. Az s-hoi 50-umi a. 20 cap karda dar E. beshtar usulhoi biokhimiyaviro kor mefarmoyand. Vazifai asosii E.-i hozira minbad ham omukhtani inkishofi to embrioni, bordorshavi, taqsimshavi, organogenez, gistogenez va g. meboshad. Dar taraqqiyoti E.-i hozira makhsusan sahmi I. I. Shmalgauzen arzanda ast. Malumoti E. dar tib va kh. q. vase istifoda shuda, baroi durusg tashkil kardani muboriza bar ziddi barangezandai bemorihoi vogir ahamiyati kalon dorand.
Dar SSSR In-ti biologiyai inkishofi AF SSSR markazi tadqiqoti ilmii E. ast. E.-ro dar un-tho va id-thoi pedagogi dars medihand.