from The American Heritage® Dictionary of the English Language, 4th Edition
- adj. Bearing or covered with spines or bristles; prickly.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. prickly; bristly
from the GNU version of the Collaborative International Dictionary of English
- adj. Set with prickles; prickly, like a hedgehog; bristled.
from The Century Dictionary and Cyclopedia
- Spiny, like a hedgehog; bristling with sharp points; bristly.
- To project at an acute angle to the axis of (a fiber), giving it a feathery or plumed appearance: said of the spicules in the axinellid type of sponge skeleton.
- To project at an acute angle to the axis of a fiber: said of the spicules in a sponge skeleton.
Latin echinatus. (Wiktionary)