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centromere

DEFINITION: (noun) The most condensed and constricted region of a chromosome, to which the spindle fiber is attached during mitosis.

USAGE: Down syndrome, a congenital disorder caused by the presence of an extra twenty-first chromosome, can result from aberrant functioning of the centromere.

SYNONYMS: kinetochore.

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Other dictionary words:

Dictionary: farsighted
DEFINITION: (adjective) Planning prudently for the future.

Dictionary: corporeal
DEFINITION: (adjective) Of a material nature; tangible.

Dictionary: avaricious
DEFINITION: (adjective) Immoderately desirous of wealth or gain.

Dictionary: stalwart
DEFINITION: (adjective) Having or marked by imposing physical strength.

Dictionary: sanctimonious
DEFINITION: (adjective) Feigning piety or righteousness.

Dictionary: exiguity
DEFINITION: (noun) The quality or condition of being scanty or meager.

Dictionary: elfin
DEFINITION: (adjective) Having a magical quality or charm; fairylike.

Dictionary: vicinity
DEFINITION: (noun) A nearby, surrounding, or adjoining region.

Dictionary: apposite
DEFINITION: (adjective) Strikingly appropriate and relevant.

Dictionary: oracular
DEFINITION: (adjective) Resembling an oracle in obscurity of thought.

Dictionary: acquiescent
DEFINITION: (adjective) Willing to carry out the orders or wishes of another without protest.

Dictionary: inerrant
DEFINITION: (adjective) Incapable of erring; infallible.

Dictionary: ungainly
DEFINITION: (adjective) Lacking grace or ease of movement or form.

Dictionary: baleful
DEFINITION: (adjective) Threatening or foreshadowing evil or tragic developments.