from The American Heritage® Dictionary of the English Language, 4th Edition
- n. See screw bean.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A small tree, Prosopis pubescens, native to Mexico and parts of the United States that has spirally twisted pods; the screw bean
- n. A low-frequency seismic event associated with volcanoes
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. shrub or small tree of southwestern United States and northwestern Mexico having spirally twisted pods
This is called the "tornillo" (screw), and it is a real corkscrew path, cut out of the mountain side at an angle of about 50 deg., and about 450 feet of a climb.
Around grew _acacias, mimosas, gleditschias, robinias, algarobias_ -- all the thorny legumes of the world; above towered the splendid _fouquiera_ with spinous stem; there nourished the "tornillo" (_prosopis glandulosa_), with its twisted beans; there the "junco" (_koeblerinia_), whose very leaves are thorns.
The horned lizard (_agama cornuta_), the ground rattlesnake, the shell-covered armadillo, and the ever-present coyote, alone inhabit these dry jungles; and now and then the javali (_dicotyles torquatus_), feeding upon the twisted legumes of the "tornillo," passes through their midst; but even these are rare; and the traveller may ride for scores of miles through a Mexican chapparal without encountering aught that lives and moves.
These signals may have been related to eruptive activity (amongst others, it included the famous "tornillo" events that Galeras volcano in Colombia is notorious for).