amygdaloid

amygdaloid
Shaped like an almond.
2. noun
A variety of trap or basaltic rock, containing small cavities, occupied, wholly or in part, by nodules or geodes of different minerals, especially agates, quartz, calcite, and the zeolites. When the imbedded minerals are detached or removed by decomposition, it is porous, like lava.

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  • Amygdaloid — A*myg da*loid, Amygdaloidal A*myg da*loid al, a. 1. Almond shaped. [1913 Webster] 2. Pertaining to, or having the nature of, the rock amygdaloid. [1913 Webster] …   The Collaborative International Dictionary of English

  • amygdaloid — [ə mig′də loid΄] n. [ AMYGDAL(A) + OID] igneous rock containing amygdules adj. 1. almond shaped 2. of or like amygdaloid; containing amygdules …   English World dictionary

  • Amygdaloid — A*myg da*loid, n. [Gr. ? almond + oid: cf. F. amygdalo[ i]de.] (Min.) A variety of trap or basaltic rock, containing small cavities, occupied, wholly or in part, by nodules or geodes of different minerals, esp. agates, quartz, calcite, and the… …   The Collaborative International Dictionary of English

  • Amygdaloid — Amygdaloid, derived from the Latin for almond, can refer to: * the amygdala in the brain. * any almond shape * (as amygdaloidal ) a volcanic rock texture in which small volatile cavities or vesicles are filled with secondary minerals …   Wikipedia

  • Amygdaloīd — Amygdaloīd, s. Mandelstein …   Meyers Großes Konversations-Lexikon

  • Amygdaloid — Dieser Artikel wurde wegen inhaltlicher Mängel auf der Qualitätssicherungsseite des Portals Geowissenschaften eingetragen. Dies geschieht, um die Qualität der Artikel im Themengebiet Geowissenschaften zu steigern. Bitte hilf mit, die Mängel zu… …   Deutsch Wikipedia

  • amygdaloid — Resembling an almond or a tonsil. [amygdala + G. eidos, appearance] * * * amyg·da·loid .lȯid adj 1) almond shaped 2) of, relating to, or affecting an amygdala <amygdaloid lesions> * * * amyg·da·loid (ə migґdə loid) [amygdalo +… …   Medical dictionary

  • amygdaloid — adj. shaped like an almond. Phrases and idioms: amygdaloid nucleus a roughly almond shaped mass of grey matter deep inside each cerebral hemisphere, associated with the sense of smell. Etymology: L amygdala f. Gk amugdale almond …   Useful english dictionary

  • Amygdaloid Island — is an island in Lake Superior. It is within the boundary of Isle Royale National Park, a national park located within the U.S. state of Michigan. The island is protected and patrolled by a seasonal ranger station operated by the U.S. National… …   Wikipedia

  • amygdaloid body — n AMYGDALA * * * corpus amygdaloideum …   Medical dictionary

  • amygdaloid nucleus — n AMYGDALA * * * see amygdala * * * corpus amygdaloideum …   Medical dictionary

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