Amygdaloidal
a volcanic rock in which rounded cavities formed by the expansion of gas or steam have later become filled with deposits of various minerals.
(of rocks) containing amygdules.
.
anatomy. of or relating to an amygdala.
historical examples
there was no outlet, for it was a cul-de-sac—a natural court—such as are often found among the amygdaloidal mountains of mexico.
the lone ranche captain mayne reid
occasionally we meet with igneous rocks which are more or less vesicular and amygdaloidal throughout their entire m-ss.
geology james geikie
some specimens of variegated pebbles and jasper were found here imbedded in the amygdaloidal rock.
narrative of a journey to the sh-r-s of the polar sea, in the years 1819-20-21-22, volume 2 john franklin
they consist almost exclusively of greenstone, becoming, in a few instances, earthy and amygdaloidal.
a manual of elementary geology charles lyell.
i ascended one, and found it was capped with trap rock in amygdaloidal nodules.
journal of an expedition into the interior of tropical australia thomas mitch-ll
crystals are found as a rarity in the amygdaloidal cavities of igneous rocks.
encyclopaedia britannica, 11th edition, volume 3, part 1, slice 3 various
an amygdaloidal variety containing calcareous spar and zeolite occurs s. of dudley.
drake’s road book of the grand junction railway james drake
the lavas comprise dark pitchstone, resembling that at kirk yetholm, and porphyritic and amygdaloidal andesites and basalts.
encyclopaedia britannica, 11th edition, volume 6, slice 1 various
it may be traced for many miles, p-ssing through the amygdaloidal and other traps of the hill called normans law.
a manual of elementary geology charles lyell.
the amygdaloidal m-sses, contained in the amygdaloid, are either entirely pistacite, or pistacite enclosing calc-spar.
a journey from prince of wales’s fort in hudson’s bay to the northern ocean in the years 1769, 1770, 1771, 1772 samuel hearne
adjective
(of a volcanic rock) containing amygdales
a less common form of amygdaloid (sense 2)
noun
a volcanic igneous rock containing amygdales
adjective
having the shape of an almond
a less common form of amygdaloidal (sense 1)
amygdaloid a·myg·da·loid (ə-mĭg’də-loid’) or a·myg·da·loi·dal (ə-mĭg’də-loid’l)
adj.
shaped like an almond.
of or relating to an amygdala.
Read Also:
- Amygdaloside
amygdaloside amygdaloside a·myg·da·lo·side (ə-mĭg’də-lə-sīd’) n. see amygdalin.
- Amyl acetate
(def 1). historical examples the pear flavor, amyl acetate, is made from acetic acid and amyl alcohol—though amyl alcohol (fusel oil) has a detestable smell. creative chemistry edwin e. slosson noun another name (no longer in technical usage) for pentyl acetate
- Amyl alcohol
a colorless liquid, c 5 h 12 o, consisting of a mixture of two or more isomeric alcohols, derived from the pentanes, and used as a solvent and intermediate for organic synthesis: the main component of fusel oil. historical examples it is insoluble in ether and in absolute alcohol, and not readily soluble in amyl […]
- Amyl group
any of several univalent, isomeric groups having the formula c 5 h 11 –, whose derivatives are found in fusel oil, fruit extracts, etc.
- Amyl nitrite
a yellowish, fragrant, flammable liquid, c 5 h 11 no 2 , used in medicine chiefly as a vasodilator, especially in the treatment of angina pectoris: misused by inhalation as a stimulant, especially of s-xual sensation. contemporary examples with the president surrounded by “a fast hollywood crowd,” someone offered him amyl nitrite, or “poppers.” intern’s […]