Glossary

Our glossary defines potentially new scientific or other terms to students. Glossary words are appear in bold in our resources.

  • a as in ape
  • ä as in car
  • e as in me
  • i as in ice
  • o as in go
  • ô as in for
  • u as in use
  • ü as in fur
  • oo as in tool
  • ng as in sting

T

totem pole

( təm pȯl): A pole carved and painted with totems and set up by native Alaskan peoples. A totem is an honored symbol.

toxic

Containing or being a poisonous material, which may be capable of causing death or serious illness.

traditional

(trə di shə nəl): Adhering to past practices or established conventions; based on custom.

trajectory

(trə jek t(ə-)rē): The curved path along which something (such as a rocket) moves through the air or through space.

trampling

(tram p(ǝ) liŋ): Walking or traveling heavily so as to bruise, crush, or injure things underfoot.

transcribe

(tran(t) skrīb): To make a copy of (dictated or recorded matter) in longhand or on a machine (as a computer).

transect

(tran(t) sekt): A sample area usually in the form of a long continuous strip.

transition

(tran zi shən): A changing from one state, stage, place, or subject to another.

transmission

(tran(t)s mi shən): The process of transferring from one person, animal, or place, to another.

transmit

(trans mit): To transfer from one person, animal, or place, to another.

transpiration

(tran(t)s shən): The process by which plants give off water vapor through the stomata in their leaves.

treatment

(trēt mǝnt): Something that researchers administer or change in experimental units to test something or run a trial.

tremor

(tre mər): A small movement of the earth before or after an earthquake.

trend

(trend): The general movement over time of a statistically detectable change.

Tribal

(trī bǝl): Of, relating to, or characteristic of a Tribe, in this case an American Indian Tribe.

tributary

(tri byə ter ē): A stream that flows into a larger stream or river or into a lake.

tribute

(tri byüt): A gift or service showing respect, gratitude, or affection.

tropical

(trä pi kǝl): Of, relating to, occurring in, or used in the tropics, which is the area between two parallels of the earth's latitude that are approximately 23½ degrees north of the equator and approximately 23½ degrees south of the equator.

tropics

(träp iks): The region that surrounds the equator and goes from 23.5 degrees north latitude to 23.5 degrees south latitude.

troposphere

(trō pǝ sfir): The portion of the atmosphere which extends from the Earth's surface to the bottom of the stratosphere (a distance of about 7 miles or 11 kilometers) and in which temperature generally decreases rapidly with altitude.