amniotic sac

名词 n.
中文释义
英 /ˌæm.niːˌɒt.ɪk ˈsæk/|/ˌam.niːˌɒt.ɪk ˈsak/|/ˌæm.niːˌɔːt.ɪk ˈsæk/|/ˌam.niːˌɔːt.ɪk ˈsak/    美 /ˌæm.niˌɔt.ɪk ˈsæk/|/ˌæm.niˌɑt.ɪk ˈsæk/|/ˌæm.niːˌɔt.ɪk ˈsæk/

英文释义

名词 n.
  1. The sac in which the foetus develops in mammals, reptiles, and birds.
    — Near-synonym: amnion (meronymy, holonymy, or embryological sequence seem to vary by who is defining the two)

词形变化

amniotic sacs plural
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