Abnormalities pl. : of Abnormality

Example:
What are the odds to having a down syndrome baby with 2 ultrasound Abnormalities?

Taxonomy
chromosome, anomaly, Chromosome abnormality, chromosome anomalies, portion, abnormality, free encyclopedia, deletion, humans, genetic material, Translocations, mutations, duplication, number of chromosomes, monosomy, abnormal number of chromosomes, Down Syndrome, centromere.

Defination from the web:
abnormality or aberration reflects an atypical number of chromosomes or a structural abnormality in one or more chromosomes. ... Pathology: chromosome abnormalities (Q90-Q99 · 758) Autosomal. Trisomies. Down syndrome (21) · Edwards syndrome (18) · Patau syndrome (13) ...