prickle

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun A small hard pointed outgrowth of the epidermis of a plant, in contrast to a modified plant organ such as a spine or thorn.
• noun A spine, thorn, or other small sharp structure.
• noun A tingling or pricking sensation.
• intransitive verb To feel a tingling or pricking sensation.
• intransitive verb To rise or stand up like prickles.
• intransitive verb To cause a tingling or pricking sensation in.

from The Century Dictionary.

• To prick or puncture slightly; pierce with fine sharp points.
• To cause a pricking sensation in: said of the skin.
• To cover with pricks or points; dot.
• To be prickly.
• noun A little prick; a small sharp point; in botany, a small sharp-pointed conical process growing from the bark only, as in the rose and blackberry, and thus distinguished from the spine or thorn, which is usually a modified branch or leaf growing from the wood of the plant.
• noun A sharp-pointed process or projection, as from the skin of an animal; a spine.
• noun The sensation of being pricked or stung.
• noun A kind of basket: still used in some trades. See the second quotation.
• noun A sieve of filberts, containing about half of a hundredweight.

from the GNU version of the Collaborative International Dictionary of English.

• transitive verb To prick slightly, as with prickles, or fine, sharp points.
• noun A little prick; a small, sharp point; a fine, sharp process or projection, as from the skin of an animal, the bark of a plant, etc.; a spine.
• noun A kind of willow basket; -- a term still used in some branches of trade.
• noun engraving A sieve of filberts, -- about fifty pounds.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun A small, sharp pointed object, such as a thorn.
• noun A tingling sensation of mild discomfort.
• verb intransitive To feel a prickle.
• verb transitive To cause someone to feel a prickle.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• verb make a small hole into, as with a needle or a thorn
• noun a small sharp-pointed tip resembling a spike on a stem or leaf
• verb cause a stinging or tingling sensation
• verb cause a prickling sensation