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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

organ go
a fully differentiated structural and functional unit in an animal that is specialized for some particular function

internal organ, viscus go
a main organ that is situated inside the body

excretory organ, urinary organ
an organ that separates waste substances from the blood and discharges them

noun.body

2 Subcategories

flame cell go
organ of excretion in flatworms
kidney go
either of two bean-shaped excretory organs that filter wastes (especially urea) from the blood and excrete them and water in urine