Prickly \Prick"ly\, a. Full of sharp points or prickles; armed or covered with prickles; as, a prickly shrub.

Prickly ash (Bot.), a prickly shrub (Xanthoxylum Americanum) with yellowish flowers appearing with the leaves. All parts of the plant are pungent and aromatic. The southern species is X. Carolinianum. --Gray.

Prickly heat (Med.), a noncontagious cutaneous eruption of red pimples, attended with intense itching and tingling of the parts affected. It is due to inflammation of the sweat glands, and is often brought on by overheating the skin in hot weather.

Prickly pear (Bot.), a name given to several plants of the cactaceous genus Opuntia, American plants consisting of fleshy, leafless, usually flattened, and often prickly joints inserted upon each other. The sessile flowers have many petals and numerous stamens. The edible fruit is a large pear-shaped berry containing many flattish seeds. The common species of the Northern Atlantic States is Opuntia vulgaris. In the South and West are many others, and in tropical America more than a hundred more. O. vulgaris, O. Ficus-Indica, and O. Tuna are abundantly introduced in the Mediterranean region, and O. Dillenii has become common in India.

Prickly pole (Bot.), a West Indian palm (Bactris Plumierana), the slender trunk of which bears many rings of long black prickles.

Prickly withe (Bot.), a West Indian cactaceous plant (Cereus triangularis) having prickly, slender, climbing, triangular stems.

Prickly rat (Zo["o]l.), any one of several species of South American burrowing rodents belonging to Ctenomys and allied genera. The hair is usually intermingled with sharp spines.

Source: Webster's Revised Unabridged Dictionary (1913)
 

Hop \Hop\, n. [OE. hoppe; akin to D. hop, hoppe, OHG. hopfo, G. hopfen; cf. LL. hupa, W. hopez, Armor. houpez, and Icel. humall, SW. & Dan. humle.]

1. (Bot.) A climbing plant (Humulus Lupulus), having a long, twining, annual stalk. It is cultivated for its fruit (hops).

2. The catkin or strobilaceous fruit of the hop, much used in brewing to give a bitter taste.

3. The fruit of the dog-rose. See Hip.

Hop back. (Brewing) See under 1st Back.

Hop clover (Bot.), a species of yellow clover having heads like hops in miniature (Trifolium agrarium, and T. procumbens).

Hop flea (Zo["o]l.), a small flea beetle (Haltica concinna), very injurious to hops.

Hop fly (Zo["o]l.), an aphid (Phorodon humuli), very injurious to hop vines.

Hop froth fly (Zo["o]l.), an hemipterous insect (Aphrophora interrupta), allied to the cockoo spits. It often does great damage to hop vines.

Hop hornbeam (Bot.), an American tree of the genus Ostrya (O. Virginica) the American ironwood; also, a European species (O. vulgaris).

Hop moth (Zo["o]l.), a moth (Hypena humuli), which in the larval state is very injurious to hop vines.

Hop picker, one who picks hops.

Hop pole, a pole used to support hop vines.

Hop tree (Bot.), a small American tree (Ptelia trifoliata), having broad, flattened fruit in large clusters, sometimes used as a substitute for hops.

Hop vine (Bot.), the climbing vine or stalk of the hop.

Source: Webster's Revised Unabridged Dictionary (1913)