
1) Volcanic landform
Found on
https://www.crosswordclues.com/clue/hornito

Hornitos are formed in lava flows and are small openings that release small quantities of lava. Similar to spatter cones, Hornitos are rootless meaning they don`t sit on top of the main vent like spatter cones. Instead they are usually created by the slow upwelling of lava through the roof of a lava tube. High pressure causes lava to ooze and spa....
Found on
http://en.wikipedia.org/wiki/Hornito

low oven
Found on
http://phrontistery.info/h.html

• (n.) A low, oven-shaped mound, common in volcanic regions, and emitting smoke and vapors from its sides and summit.
Found on
http://thinkexist.com/dictionary/meaning/hornito/

This hornito formed on the surface of a pahoehoe flow during the Mauna Ulu eruption on the east rift zone of Kilauea Volcano, Hawai'i. Credit: D. A. Swanson / U.S. Geological Survey A small rootless spatter cone that forms on the surface of a basaltic lava flow (usually pahoehoe). A hornito dev...
Found on
http://www.daviddarling.info/encyclopedia/H/hornito.html
Hor·ni'to noun [ A dim. from Spanish
horno oven, Latin
furnus . See
Furnace .]
(Geol.) A low, oven-shaped mound, common in volcanic regions, and emitting smoke and vapors from its sides and summit.
Humboldt. Found on
http://www.encyclo.co.uk/webster/H/61

a small cone that forms on the surface of a lava flow when hot lava is forced up through an opening in the cooled surface of a flow and accumulates
Found on
http://www.pbs.org/wgbh/nova/volcano/glossary.html

A hornito is a low, oven-shaped mound, common in volcanic regions, and emitting smoke and vapours from its sides and summit.
Found on
http://www.probertencyclopaedia.com/browse/HH.HTM

a low oven-shaped mound of congealed lava, common in some volcanic districts, emitting hot smoke and vapors in the final stages of activity.
Found on
https://www.infoplease.com/dictionary/hornito
No exact match found.