Amygdaloid
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 zeolites. When the imbedded minerals are detached or removed by decomposition, it is porous, like lava. [1913 Webster]

The Collaborative International Dictionary of English. 2000.

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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 — 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 — adjective Etymology: Greek amygdaloeidēs, from amygdalē Date: 1836 1. almond shaped 2. of, relating to, or affecting an amygdala …   New Collegiate Dictionary

  • amygdaloid — /euh mig deuh loyd /, n. Petrol. 1. a volcanic rock in which rounded cavities formed by the expansion of gas or steam have later become filled with deposits of various minerals. adj. Also, amygdaloidal. 2. (of rocks) containing amygdules. 3.… …   Universalium

  • amygdaloid — 1. adjective 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… …   Wiktionary

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