Glossary

(path ǝ jǝn): A germ (such as a bacterium or virus) that causes disease.

(pā shənt): Able to wait calmly.

(pa tәrn): Something that happens in a regular or repeated way.

(pir ri vyü): A process by which something proposed (such as for research or publication) is evaluated by a group of experts in the appropriate field.

(pə la jik): Of, relating to, or living or occurring in the open sea.

(pǝrch): A support, like a branch, on which a bird rests.

(pǝ ren ē ǝl): Present at all seasons of the year.

(pə ri mə tər): A line or strip bounding or protecting an area.

(pir ē ä dik): Occurring at regular intervals.

(pir ē ä di k(ǝ) lē): At regular intervals of time; from time to time.

(pər si stən(t)s): The state of occurring or existing beyond the usual, expected, or normal time.

(pər vā siv): Spread throughout so thoroughly as to be seen or felt everywhere.

(pes tə sīd): A substance that is used to kill animals or insects that are harmful to humans or human activities (like agriculture).

(pə ti shən): (1) (verb) To make a formal written request made to an authority or organized body (such as a court); (2) (noun) a written request or call for change signed by many people in support of a shared cause or concern.

(pē trē dish): A small shallow dish of thin glass or plastic with a loose cover used especially for cultures of bacteria.

(pē āch): A number used in expressing acidity or alkalinity on a scale whose values run from 0 to 14 with 7 representing neutrality, numbers less than 7 increasing acidity, and numbers greater than 7 increasing alkalinity.

(fär mə süt i kəl): Of, relating to, or involved in pharmacy or the manufacture and sale of medicinal drugs.

(fi nä lə jē): A branch of science dealing with the relationship between climate and periodic biological phenomena (such as bird migration or plant flowering).

(fǝ lä sǝ fē): Someone's basic beliefs about the way people should live.