Dictionary > Walnut

Walnut

walnut
(Science: botany) The fruit or nut of any tree of the genus juglans; also, the tree, and its timber. The seven or eight known species are all natives of the north temperate zone.
In some parts of America, especially in new England, the name walnut is given to several species of hickory (Carya), and their fruit. Ash-leaved walnut, a tree (juglans fraxinifolia), native in transcaucasia. Black walnut, a North American tree (J. Nigra) valuable for its purplish brown wood, which is extensively used in cabinetwork and for gunstocks. The nuts are thick-shelled, and nearly globular. English, or European, walnut, a tree (J. Regia), native of asia from the Caucasus to japan, valuable for its timber and for its excellent nuts, which are also called madeira nuts. Walnut brown, a deep warm brown colour, like that of the heartwood of the black walnut. Walnut oil, oil extracted from walnut meats. It is used in cooking, making soap, etc. White walnut, a North American tree (J. Cinerea), bearing long, oval, thick-shelled, oily nuts, commonly called butternuts. See Butternut.
Origin: OE. Walnot, AS. Wealh-hnutu a Welsh or foreign nut, a walnut; wealh foreign, strange, n, a Welshman, Celt (akin to OHG. Walh, properly, a Celt, from the name of a Celtic tribe, in L. Volcae) – hnutu a nut; akin to D. Walnoot, G. Walnuss, Icel. Valhnot, Sw. Valnot, Dan valnod. See Nut, and cf. Welsh.


You will also like...

mRNA
Protein Synthesis

Part of the genetic information is devoted to the synthesis of proteins. mRNA, a type of RNA, is produced as a transcri..

Flowers and tiny fruits of the pomegranate plant
Fruits, Flowers, and Seeds

This tutorial deals with the structure and function of flowers, fruits, and seeds. Also included here are the types of f..

Lentic community
Freshwater Communities & Lentic Waters

Lentic or still water communities can vary greatly in appearance -- from a small temporary puddle to a large lake. The s..

New Zealand - Biodiversity fauna
New Zealand’s Biodiversity

Find out more about New Zealand's unique biodiversity by exploring a range of different ecosystems and the key role of s..

takahē
Takahē (Porphyrio hochstetteri)

Meet the colorful takahē, an extremely rare flightless bird. Find out more about its unique features and why they matte..

Neurology of Illusions
Neurology of Illusions

Illusions are the perceptions and sensory data obtained from situations in which human error prevents us from seeing the..