1, anencephaly (wún?o): anencephaly is a kind of malformation that exists in humans and various vertebrates. The neural plates of the brain remain open without atresia, and the formation of brain tissue is seriously inhibited, often accompanied by cleft palate and partial loss of spinal cord. This deformity can be caused by hypoxia in amphibians and chickens at the early stage of embryogenesis.

2, no brain is often used to describe a fool, the basic meaning is to describe people doing things without thinking, acting stupid.

Extended data:

A synonym for brainless: stupidity and ignorance.

1, idiot [yü ch ǔ n]

Stupid; Not smart: ~ to the core. This practice is too ~.

Hao Ran's Sunny Day, Chapter 74: "He was angry and thought the enemy was stupid, so he couldn't help laughing."

Step 2 be ignorant

Lack of knowledge; Stupid and unreasonable: ~ ignorance.

Ai Qing's Ode to Light (V): "Ignorance is darkness, wisdom is light."

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