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entity go
that which is perceived or known or inferred to have its own distinct existence (living or nonliving)

physical entity go
an entity that has physical existence

thing go
a separate and self-contained entity

part, piece go
a portion of a natural object

body part go
any part of an organism such as an organ or extremity

tissue go
part of an organism consisting of an aggregate of cells having a similar structure and function

animal tissue go
the tissue in the bodies of animals

embryonic tissue go
tissue in an embryo

germ layer go
(embryology) any of the 3 layers of cells differentiated in embryos following gastrulation

ectoderm, exoderm, ectoblast go
the outer germ layer that develops into skin and nervous tissue

neural tube
a tube of ectodermal tissue in the embryo from which the brain and spinal cord develop

noun.animal

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