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

P

pollen

( lǝn): The tiny particles in the anthers of a flower that fertilize the seeds and usually appear as fine yellow dust

pollinate

( lǝ nāt): To place pollen on the stigma of a flower, which fertilizes the flower and causes seeds to develop.

pollination

(pä lə shən): The transfer of pollen from a stamen to a pistil of a flower or from a male cone to a female cone.

pollinator

( lǝ nā tǝr): An agent (such as an insect) that pollinates flowers.

pollutant

(pə tənt): Something that pollutes.

pollutants

pool

(pül): A small and rather deep body of usually fresh water; a quiet place in a stream.

population

(pä pyǝ shǝn): The total of individuals occupying an area.

population density

(pä pyǝ shǝn den sǝ tē): The number of individuals living in each unit of area (such as a square mile).

porous

(pȯr ǝs): Full of tiny openings or spaces (as in the skin or the soil); capable of absorbing liquids.

potassium

(pə ta sē əm): A silver-white, soft, light metallic element that has a low melting point and occurs abundantly in nature, especially combined in minerals.

practical

(prak ti kǝl): Capable of being put to use or account; useful.

prairie

(prer ē): A large area of level or rolling grassland.

precaution

(pri shən): A measure taken beforehand to prevent harm or to bring about a good result.

precipitation

(pri si pə shən): A deposit on the Earth of hail, mist, rain, sleet, or snow.

(pri si pə shən): Water or the amount of water that falls to Earth as hail, mist, rain, sleet, or snow.

predator

(pre də tər): An animal that preys on other animals for food.

(pre də tər): An animal that eats other animals.

predict

(pre dikt): Foretell (or tell in advance) on the basis of observation, experience, or scientific reason.

predictable

(pri dik tǝ bǝl): Able to be known, seen, or declared in advance; behaving in a way that is expected.

prediction

(pri dik shǝn): A guess about the future based on what we know now.

preliminary

(pri li mə ner ē): Something that comes first in order to prepare for or introduce the main part of something else.