amnion

UK:*UK and possibly other pronunciationsUK and possibly other pronunciations/ˈæmnɪən/US:USA pronunciation: respellingUSA pronunciation: respelling(amnē ən)


Inflections of 'amnion' (nnoun: Refers to person, place, thing, quality, etc.):
amnions
nplplural noun: Noun always used in plural form--for example, "jeans," "scissors."
amnia
nplplural noun: Noun always used in plural form--for example, "jeans," "scissors."

WordReference Random House Unabridged Dictionary of American English © 2020
am•ni•on  (amnē ən),USA pronunciation n., pl.  -ni•ons, -ni•a 
    (amnē ən),USA pronunciation 
  1. Anatomythe innermost of the embryonic or fetal membranes of reptiles, birds, and mammals;
    the sac in which the embryo is suspended.
  2. [Zool.]a similar membrane of insects and other invertebrates.
  • Greek, equivalent. to amn(ós) lamb (see yean) + -ion diminutive suffix
  • 1660–70

Collins Concise English Dictionary © HarperCollins Publishers::
amnion /ˈæmnɪən/ n ( pl -nions, -nia / -nɪə/)
  1. the innermost of two membranes enclosing an embryonic reptile, bird, or mammal
Etymology: 17th Century: via New Latin from Greek: a little lamb, from amnos a lamb
'amnion' also found in these entries:
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