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deltoid

1. n. a muscle that covers the shoulder and is used to raise the arm to the side.

2. adj. pertaining to the deltoid muscle.

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Psychology term of the day

January 3rd 2025

ring chromosome 18

ring chromosome 18

a congenital chromosomal disorder characterized by microcephaly, ear and eye abnormalities, and mild to severe cognitive impairment. The condition is not hereditary but due to breakage of the arms of chromosome 18, which fuse to form one or more rings of varying sizes.