tindar

Etymology
, after the Icelandic word, although its plural form, tindar has, since Jones' coinage, been used incorrectly as the singular.

Noun

 * 1)  An elongate ridge of pyroclastic palagonitic tuff, lava delta hyaloclastites, and pillow lavas common in Iceland, erupted subaqueously within an englacial lake during a subglacial volcanic fissure eruption.

Translations

 * Icelandic: móbergshryggur