1846, "an instance of abnormality, irregularity, deformity;" 1853 as "fact or quality of being abnormal," from abnormal (q.v.) + -ity. Earlier was abnormity (1731), but according t [..]

deformity or condition different from the normal or expected state of being.

In meteorology, a deviation of the weather or climate from the conditions normally expected at a particular time and place; a deviation from the normal. Compare anomaly.

1. in a position that is not normal. 2. disfigurement or imperfections in building or operations.

An abnormality is a characteristic that is outside of what is considered normal. In psychology, the term abnormal refers to behavior that deviates from what is considered "normal." For insta [..]

(n) an abnormal physical condition resulting from defective genes or developmental deficiencies(n) retardation sufficient to fall outside the normal range of intelligence(n) marked strangeness as a co [..]

Congenital, inherited, or acquired anomalies of the Cardiovascular System, including the Heart and Blood Vessels.

Malformations of organs or Body Parts during development in utero.

Congenital structural Deformities, malformations, or other abnormalities of the Cranium and Facial Bones.

Abnormal number or structure of Chromosomes. Chromosome aberrations may result in Chromosome Disorders.

Congenital structural abnormalities of the Digestive System.

Congenital Abnormalities caused by medicinal substances or Drugs of abuse given to or taken by the Mother, or to which she is inadvertently exposed during the manufacture of such substances. The conce [..]

Congenital absence of or defects in structures of the eye; may also be hereditary.

Developmental abnormalities involving structures of the Heart. These defects are present at Birth but may be discovered later in Life.

Congenital absence of or defects in structures of the jaw.

Congenital or acquired structural abnormalities of the Lymphatic System (Lymphoid Tissue) including the Lymph vessels.

Congenital structural Deformities, malformations, or other abnormalities of the Maxilla and Face or Facial Bones.

Congenital absence of or defects in structures of the Mouth.

Congenital structural abnormalities and Deformities of the Musculoskeletal System.

Structural abnormalities of the central or Peripheral Nervous System resulting primarily from defects of Embryogenesis.

Congenital changes in the morphology of organs produced by exposure to ionizing or Non-Ionizing Radiation.

Congenital structural abnormalities of the Respiratory System.

Marked developmental anomalies of a Fetus or Infant.

Abnormal number or structure of the Sex Chromosomes. Some sex Chromosome Aberrations are associated with Sex Chromosome Disorders and Sex Chromosome Disorders of Sex Development.

Congenital structural abnormalities of the Skin.

Congenital structural abnormalities of the Mouth and Jaws, including the Dentition.

Congenital absence of or defects in structures of the Teeth.

An abnormal twisting or Rotation of a bodily part or member on its axis.

Congenital structural abnormalities of the Urogenital System in either the male or the female.

1. The state or quality of being abnormal. 2. An anomaly, deformity, malformation, impairment, or dysfunction. (05 Mar 2000)

The state or quality of being abnormal; variation; irregularity. First attested in the mid 19^th century.SOED5|page=6 Something abnormal; an aberration; an abnormal [..]