pennyroyal
         n 1: Eurasian perennial mint have small lilac-blue flowers and
               ovate leaves; yields an aromatic oil [syn: {pennyroyal},
               {Mentha pulegium}]
         2: erect hairy branching American herb having purple-blue
            flowers; yields an essential oil used as an insect repellent
            and sometimes in folk medicine [syn: {pennyroyal}, {American
            pennyroyal}, {Hedeoma pulegioides}]

English Dictionary: pennyroyal	by the DICT Development Group
From WordNet (r) 3.0 (2006) [wn]:
pennyroyal oil n oil from European pennyroyal having an odor like mint; used chiefly in soaps aromatic oil from American pennyroyal Synonym(s): pennyroyal oil, hedeoma oil
From Webster's Revised Unabridged Dictionary (1913) [web1913]:
Pennyroyal \Pen`ny*roy"al\, n. [A corruption of OE. puliall       royal. OE. puliall is ultimately derived fr. L. puleium, or       pulegium regium (so called as being good against fleas), fr.       pulex a flea; and royal is a translation of L. regium, in       puleium regium.] (Bot.)       An aromatic herb ({Mentha Pulegium}) of Europe; also, a North       American plant ({Hedeoma pulegioides}) resembling it in       flavor.          {Bastard pennyroyal} (Bot.) See {Blue curls}, under {Blue}.
From Webster's Revised Unabridged Dictionary (1913) [web1913]:
Pin \Pin\, n. [OE. pinne, AS. pinn a pin, peg; cf. D. pin, G.       pinne, Icel. pinni, W. pin, Gael. & Ir. pinne; all fr. L.       pinna a pinnacle, pin, feather, perhaps orig. a different       word from pinna feather. Cf. {Fin} of a fish, {Pen} a       feather.]       1. A piece of wood, metal, etc., generally cylindrical, used             for fastening separate articles together, or as a support             by which one article may be suspended from another; a peg;             a bolt.                         With pins of adamant And chains they made all fast.                                                                               --Milton.          2. Especially, a small, pointed and headed piece of brass or             other wire (commonly tinned), largely used for fastening             clothes, attaching papers, etc.          3. Hence, a thing of small value; a trifle.                         He . . . did not care a pin for her.   --Spectator.          4. That which resembles a pin in its form or use; as:             (a) A peg in musical instruments, for increasing or                   relaxing the tension of the strings.             (b) A linchpin.             (c) A rolling-pin.             (d) A clothespin.             (e) (Mach.) A short shaft, sometimes forming a bolt, a                   part of which serves as a journal. See Illust. of                   {Knuckle joint}, under {Knuckle}.             (f) (Joinery) The tenon of a dovetail joint.          5. One of a row of pegs in the side of an ancient drinking             cup to mark how much each man should drink.          6. The bull's eye, or center, of a target; hence, the center.             [Obs.] [bd]The very pin of his heart cleft.[b8] --Shak.          7. Mood; humor. [Obs.] [bd]In merry pin.[b8] --Cowper.          8. (Med.) Caligo. See {Caligo}. --Shak.          9. An ornament, as a brooch or badge, fastened to the             clothing by a pin; as, a Masonic pin.          10. The leg; as, to knock one off his pins. [Slang]          {Banking pin} (Horol.), a pin against which a lever strikes,             to limit its motion.          {Pin drill} (Mech.), a drill with a central pin or projection             to enter a hole, for enlarging the hole, or for sinking a             recess for the head of a bolt, etc.; a counterbore.          {Pin grass}. (Bot.) See {Alfilaria}.          {Pin hole}, a small hole made by a pin; hence, any very small             aperture or perforation.          {Pin lock}, a lock having a cylindrical bolt; a lock in which             pins, arranged by the key, are used instead of tumblers.                      {Pin money}, an allowance of money, as that made by a husband             to his wife, for private and personal expenditure.          {Pin rail} (Naut.), a rail, usually within the bulwarks, to             hold belaying pins. Sometimes applied to the {fife rail}.             Called also {pin rack}.          {Pin wheel}.             (a) A contrate wheel in which the cogs are cylindrical                   pins.             (b) (Fireworks) A small coil which revolves on a common                   pin and makes a wheel of yellow or colored fire.