Meaning
The innermost membrane of the fetal membranes of reptiles, birds, and mammals; the sac in which the embryo is suspended.
Etymology
Origin: Latin
From Latin amnion (“membrane around a fetus”), from Ancient Greek ἀμνίον (amníon).
Synonyms & Antonyms
NYT Puzzle Appearances
No published puzzle dates on file for this word yet. It is part of the official NYT Spelling Bee word list for 2021, 2022, 2023, 2024, 2025, 2026.