The phrase "abnormal form" is correct and usable in written English.
It can be used in contexts where you are describing something that deviates from the standard or typical structure or appearance.
Example: "The artist's latest work features an abnormal form that challenges traditional aesthetics."
Alternatives: "irregular shape" or "unusual structure".
Later clinicians discovered that the condition is inherited and occurs predominantly in blacks, and others proved that the abnormality of the red blood cell is due to an abnormal form of hemoglobin.
In the disease, an abnormal form of hemoglobin distorts red blood cells into sickle shapes that clog blood vessels.
Experts believe the disease is linked to contaminated feed made from meat and bone meal that contains an abnormal form of a protein called a prion.
When an animal or person eats or is exposed to tissues containing abnormal prions, their own prion proteins are converted into the deadly abnormal form.
Some sheep carry genetic variants that render the normal prion protein resistant to conversion into the abnormal form that causes scrapie.
A hallmark of Alzheimer's is deposits in the brain of an abnormal form of a protein called amyloid.
There was focal spindling of cells with marked nuclear pleomorphism and occasional mitotic figures including abnormal forms.
Such genetic counseling is based on examining individual and family medical records and on diagnostic procedures that can detect unexpressed, abnormal forms of genes.
The absence of an immune response stems from the fact that no foreign protein is actually encountered, and because the initial pathogenic process occurs so insidiously that tolerance may be developed even against abnormal forms of PrP.
Patients with rosacea keratitis have unusually high levels and abnormal forms of an antimicrobial protein called cathelicidin, which is synthesized by cells of the immune system, such as macrophages and neutrophils.
There, Red Eagle studied the toxicity and stability of abnormal forms of a protein called transthyretin, which can cause heart failure and neurodegenerative disorders.
