Amygdaloid

3 definitions found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  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] Amygdaloid

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  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]

From WordNet (r) 2.0 [wn]:

  amygdaloid
       adj : shaped like an almond [syn: {almond-shaped}, {amygdaliform},
              {amygdaloidal}]