Pyrus communis
Pear Pear (p[^a]r), n. [OE. pere, AS. peru, L. pirum: cf. F. poire. Cf. {Perry}.] (Bot.) The fleshy pome, or fruit, of a rosaceous tree ({Pyrus communis}), cultivated in many varieties in temperate climates; also, the tree which bears this fruit. See {Pear family}, below. [1913 Webster]

{Pear blight}. (a) (Bot.) A name of two distinct diseases of pear trees, both causing a destruction of the branches, viz., that caused by a minute insect ({Xyleborus pyri}), and that caused by the freezing of the sap in winter. --A. J. Downing. (b) (Zo["o]l.) A very small beetle ({Xyleborus pyri}) whose larv[ae] bore in the twigs of pear trees and cause them to wither.

{Pear family} (Bot.), a suborder of rosaceous plants ({Pome[ae]}), characterized by the calyx tube becoming fleshy in fruit, and, combined with the ovaries, forming a pome. It includes the apple, pear, quince, service berry, and hawthorn.

{Pear gauge} (Physics), a kind of gauge for measuring the exhaustion of an air-pump receiver; -- so called because consisting in part of a pear-shaped glass vessel.

{Pear shell} (Zo["o]l.), any marine gastropod shell of the genus {Pyrula}, native of tropical seas; -- so called from the shape.

{Pear slug} (Zo["o]l.), the larva of a sawfly which is very injurious to the foliage of the pear tree. [1913 Webster] [1913 Webster]

The Collaborative International Dictionary of English. 2000.

Look at other dictionaries:

  • Pyrus communis — Saltar a navegación, búsqueda ? Peral Peral en flor Clasificación científica …   Wikipedia Español

  • Pyrus communis — Kultur Birne Kultur Birnen (Pyrus communis), Illustration Systematik Familie: Rosengewächse (Rosaceae) …   Deutsch Wikipedia

  • Pyrus communis — Poirier commun « Poirier » redirige ici. Pour les autres significations, voir Poirier (homonymie) …   Wikipédia en Français

  • Pyrus communis — paprastoji kriaušė statusas T sritis vardynas apibrėžtis Erškėtinių šeimos maistinis, medieninis, vaisinis, vaistinis augalas (Pyrus communis), kilęs iš Eurazijos. Naudojamas gėrimams (sultims) gaminti. atitikmenys: lot. Pyrus asiae mediae; Pyrus …   Lithuanian dictionary (lietuvių žodynas)

  • Pyrus communis — paprastoji kriaušė statusas T sritis augalininkystė apibrėžtis Sėklavaisinių augalų erškėtinių (Rosaceae) šeimos sodo augalas. Gerai auga ne per drėgnose, derlingose priemolio dirvose. atitikmenys: lot. Pyrus communis angl. common peartree;… …   Žemės ūkio augalų selekcijos ir sėklininkystės terminų žodynas

  • Pyrus communis — ID 69679 Symbol Key PYCO Common Name common pear Family Rosaceae Category Dicot Division Magnoliophyta US Nativity Introduced to U.S. US/NA Plant Yes State Distribution AL, AR, CA, CT, DC, DE, FL, GA, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI,… …   USDA Plant Characteristics

  • Pyrus communis — noun Old World tree having sweet gritty textured juicy fruit; widely cultivated in many varieties • Syn: ↑pear, ↑pear tree • Hypernyms: ↑fruit tree • Member Holonyms: ↑Pyrus, ↑genus Pyrus …   Useful english dictionary

  • Pyrus communis — …   Википедия

  • Pyrus communis — Pære, alm …   Danske encyklopædi

  • PYRUS COMMUNIS L. . - ГРУША ОБЫКНОВЕННАЯ — Pyrus Communis L. [В ср. полосе европ. ч. СССР Р а с п р. P. rossica Danilov. В этом р не ведется большой сбор семян дикораст. для получения подвоя и лесонасаждения. При посеве оба вида смешивают и т. обр. получают разнокачественный материал… …   Справочник растений

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