Pack-years — Das Packungsjahr, englisch pack year (py), ist die Einheit, in welcher in statistischen oder medizinischen Veröffentlichungen die inhalierte Rauch Dosis eines Zigaretten Rauchers beschrieben wird. Daraus lässt sich die Anzahl der konsumierten… … Deutsch Wikipedia
Pack year — A pack year is a quantification of cigarette smoking.DefinitionA way to measure the amount a person has smoked over a long period of time. It is calculated by multiplying the number of packs of cigarettes smoked per day by the number of years the … Wikipedia
pack-year — n. A measure of cigarette consumption equivalent to smoking one pack a day for a year. Also: pack year. Example Citations: This study analyzed data on 56,042 women who averaged about 37 years old and were free of breast cancer. Nearly half of the … New words
pack# — pack n *bundle, bunch, package, packet, bale, parcel pack vb Pack, crowd, cram, stuff, ram, tamp are comparable when they mean to fill tightly or cause to fill tightly something which holds a limited amount or presents a limited space. Pack, in… … New Dictionary of Synonyms
Pack (canine) — A pack of canines is a group of canines (Canidae) of the same kind. Not all Canidae form packs and social behaviour within packs varies with the species. Examples African wild dogs (Lycaon pictus) live and hunt in packs. Males assist in raising… … Wikipedia
pack — pack1 /pak/, n. 1. a group of things wrapped or tied together for easy handling or carrying; a bundle, esp. one to be carried on the back of an animal or a person: a mule pack; a hiker s pack. 2. a definite quantity or standard measure of… … Universalium
Pack rat — This article is about the rodent. For other uses, see Pack rat (disambiguation). Packrats Temporal range: Late Cenozoic Recent Neotoma cinerea … Wikipedia
pack — ▪ I. pack pack 1 [pæk] noun 1. [countable] a small container with a set of things in it; = PACKAGE; PACKET: • Five million tickets to Disney films will be placed in specially marked packs. pack of … Financial and business terms
Pack River — The Pack River is located in Northern Idaho. Headwaters originate in the Selkirk Mountains, and flow in a southerly direction over convert|40|mi|km|0 to the river’s mouth at the northern tip of Lake Pend Oreille. It is the second largest… … Wikipedia
pack ice — noun a large expanse of floating ice • Syn: ↑ice pack • Hypernyms: ↑ice * * * noun : sea ice formed into a chaotic mass by the crushing together of pans, floes, and brash * * * a large area of floating ice formed over a period of many years and… … Useful english dictionary
