n.
Pronunciation: ' sfir- ˌ o ̇ id, ' sfer-
Function: noun
Date: 1570
: a figure resembling a sphere also : an object of approximately spherical shape
– sphe · roi · dal \ sfi- ' ro ̇ i-d ə l \ also spheroid adjective
– sphe · roi · dal · ly \ -d ə l- ē \ adverb