What does dwarf mean?

Explain in detail:

1, unusually short; Shorty.

Source: The Book of Rites: "The deaf, the lame, the disabled, the dwarf and the skilled worker each eat with their own utensils." Zheng Xuan's Note: "A short man is a short man."

2. describe people as short because they are underage.

Source: Song and Yao Zeng's Introduction to Gaozhai: "Cai is a short boy. When he comes, he will set up a high chair in the class."

3. describe being short.

Source: "Song Gaozong made a suggestion for two years. Zi Zhi Tong Jian": "Jin people are ugly and short, and they don't know how to keep officials, so they ask the Dutch to bear the burden. Filial piety will fly to Xiling." ?

Definition and source of synonyms:

Scorpion:

Interpretation: a short person.

Source: Huacheng No.7 1980: "He is a little guy with flexible legs and feet, and there is not much silver in his short hair."

Shorty:

Interpretation: a short person.

Source: Chapter 24 of Water Margin: "The high official brought some arsenic from home, but taught the old lady to redeem a pair of distressed medicine, put arsenic in it, and it was over."

Causes of dwarfism:

1, lack of nutrition and vitamins:

Skeletal system diseases, such as chondrodystrophy and vitamin D-resistant rickets. Chondrodystrophy is a dominant inheritance of chromosomes, mainly because the formation of chondrocytes in the metaphysis of long bones affects the length of bones, making them thicker rather than growing.

The baby's limbs are thick and short, but the trunk is long, so the upper body is longer than the lower body, and the hand is not above the hip joint. Short fingers, flush fingers, low nose, large head circumference, protruding forehead, protruding abdomen, protruding lumbar vertebrae and protruding buttocks. Intelligence is normal, and sometimes it may exceed normal people. X-ray examination of long bone shows that the long bone becomes shorter, the curvature increases and the ends increase.

2. Genetic constitution:

Familial dwarfism and primary infanticide, physical growth retardation or delayed puberty. Body shape is related to family constitution. Although the body length is insufficient, its growth rate, bone and tooth development and sexual maturity are normal, and there is no abnormal endocrine function.