ALLANTOIS
- a saclike fetal membrane developing into umbilical cord and forming part of the placenta also ALLANTOID [n ALLANTOIDES or ALLANTOISES]
- The fetal membrane lying below the chorion in many vertebrates, formed as an outgrowth of the embryo's gut. In birds and reptiles it grows to surround the embryo; in eutherian mammals it forms part of the placenta
- a saclike part of a conceptus which collects liquid waste from the embryo, as well as exchanges gases used by the embryo [n ALLANTOIDES] : ALLANTOIC [adj]
Previous Words
ALL ALLANITE ALLANITES ALLANTOIC ALLANTOID ALLANTOIDAL ALLANTOIDES ALLANTOIDS ALLANTOIN ALLANTOINSNext Words
ALLANTOISES ALLARGANDO ALLATIVE ALLATIVES ALLAY ALLAYED ALLAYER ALLAYERS ALLAYING ALLAYINGS
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