See s. chromosome.
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sub·meta·cen·tric .səb-.met-ə-'sen-trik adj having the centromere situated so that one chromosome arm is somewhat shorter than the other
submetacentric n a submetacentric chromosome
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sub·meta·cen·tric (sub″met-ə-senґtrik) having the centromere near, but not at, the center of the chromosome, so that one arm is shorter than the other. Cf. acrocentric and metacentric.Medical dictionary. 2011.