existence starts and ends during late embryo embryo late growth stage An embryo that is at the late embryonic stage; this stage covers late steps of the embryogenesis with a fully formed embryo still developing before birth or egg hatching. BTO:0000449 CALOHA:TS-0360 NCIT:C13235 SCTID:83418008 FMA:63919 EFO:0001323 GAID:552 embryo late stage MESH:D005333 fetus UBERON:0000323 embryo late embryonic stage