Tannins
A yellowish compound found in many plants, such as tea and grapes, and used in tanning
and dyeing also called tannic acid. (Or)
Any of various complex phenolic substances of plant origin; used in tanning and in medicine.
Tapeworm
Any of various ribbonlike, often very long flatworms of the class Cestoda, that lack an
alimentary canal and are parasitic in the intestines of vertebrates, including humans.
Tarsals
Elating to, or situated near the tarsus of the foot: the tarsal bones.
Taxis
A movement toward or away from a stimulus.
Taxon
The named taxonomic unit at any given level.
Taxonomy
The branch of biology concerned with naming and classifying the diverse forms of life.
Tegmen
A covering or integument, such as the tough leathery forewing of certain insects or the inner
coat of a seed. Also called tegmentum.
Tegument
A natural outer covering; an integument.
Telomerase
An enzyme that catalyzes the lengthening of telomeres; the enzyme includes a molecule of
RNA that serves as a template for new telomere segments.
Telomere
The protective structure at each end of a eukaryotic chromosome. Specifically, the tandemly
repetitive DNA (see Repetitive DNA) at the end of the chromosome's DNA molecule.
Telophase
The fourth and final stage of mitosis, during which daughter nuclei form at the two poles of
a cell. Telophase usually occurs together with cytokinesis.
Temperate bacteriophage
A bacterial virus that may become incorporated into the host-cell chromosome.
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