- tandem:
- arrangement in which one object of a pair is behind the other.
- tarsus:
- terminal segment on limb of Arthropoda.
- tegument:
- the living, syncytial external layer on the body of Platyhelminthes and
Acanthocephala.
- tentacle:
- long, thin, flexible structure capable of controlled movement.
- testis:
- organ that produces spermatozoa.
- tetracotyle:
- a type of metacercaria of Strigeiformes in which there is a thick, tight
fitting cyst wall.
- thorax:
- mid-body region of Arthropoda from which limbs emerge.
- three-host tick:
- a tick in which the larva, nymph, and adult take their blood meals on three
different host individuals, requiring that they drop off a host and seek a new
host after each blood meal.
- tibia:
- the limb segment of Arthropoda from which the tarsus arises.
- tick paralysis:
- paralysis in the vertebrate host caused by toxins secreted during feeding
by females of some ticks; occasionally fatal due to paralysis of respiratory
system.
- transmammary transmission:
- transmission of a parasite from mother to offspring via milk.
- transovarian transmission:
- transmission of a parasite from a female to her eggs.
- transplacental transmission:
- transmission of a parasite from a mother's bloodstream to her fetus via the
placenta.
- trench fever:
- a rickettsial disease transmitted by lice characterized by cycles of
diminishing intensity of fever, headache and muscular pain.
- tribocytic organ:
- a glandular organ posterior to the acetabulum of Strigeoidea, that secretes
proteolytic enzymes which digest host tissues.
- trophozoite:
- a non-reproductive, feeding stage of Protozoa.
- trunk:
- general term for main body region excluding appendages.
- trypomastigote:
- a form of Trypanosomatidae with the flagellum arising posterior to the
nucleus, and possessing an undulating membrane.
- tularemia:
- a bacterial disease of northern regions transmitted by various Arthropoda,
characterized by an ulcer at the site of inoculation that may develop into a
septicemia.
- two-host tick:
- a tick in which the larva and nymph, take their blood meal on one host,
then the nymph drops off and molts; the adult seeks a new host from which to
take a blood meal.
- typhus:
- a group of rickettsial diseases transmitted by fleas or lice, generally
characterized by rash, fever, and involvement of kidneys and nervous system.