trypsin |
an enzyme in pancreatic juice that converts proteins into polypeptides. |
tryptophan |
an essential amino acid in animals that is a component of proteins and a precursor of serotonin and niacin. |
trysail |
a small fore-and-aft sail, usu. hoisted when other sails have been lowered, that helps keep a vessel headed into the wind. |
try square |
a device consisting of a ruled straightedge set at right angles to another straightedge, used by carpenters in testing for squareness or marking out right angles. |
tryst |
a meeting held at a specified time and place, esp. a secret meeting of lovers; rendezvous. [3 definitions] |
tsar |
variant of czar. |
tsarevitch |
see "czarevitch." |
tsarevna |
see "czarevna." |
tsarina |
see "czarina." |
tsetse fly |
a bloodsucking African fly, some species of which transmit sleeping sickness and other infections to humans and domestic animals. |
T-shirt |
a collarless undershirt with short sleeves, worn esp. by men and boys. [2 definitions] |
tsk |
used to express annoyance, sympathy, disapproval, or the like. |
tsp. |
abbreviation of "teaspoon" or "teaspoons." |
T square |
a T-shaped ruler having a short crosspiece that fits over the edge of a drawing board, used by drafters to draw parallel lines. |
T-strap |
a T-shaped strap over the instep of a woman's or girl's shoe. [2 definitions] |
tsunami |
a very large, often destructive sea wave caused by a marine earthquake or volcanic explosion. |
tsutsugamushi disease |
see "scrub typhus." |
tuatara |
a large lizardlike reptile of the area near New Zealand. |
tub |
a large low, usu. round, flat-bottomed container used for washing, packing, storing, or the like. [4 definitions] |
tuba |
one of a family of large, oval, brass wind instruments that produce notes in the bass range. |
tubal |
of, concerning, or taking place in a tube, esp. the Fallopian tube. |