| pill, the | Slang term for oral contraceptive pill. (12 Dec 1998) |
|---|---|
| pill-rolling | A circular movement of the opposed tips of the thumb and the index finger appearing as a form of tremor in paralysis agitans. (05 Mar 2000) |
| pill-rolling tremor | Resting tremor of the thumb and fingers seen in Parkinson disease. (05 Mar 2000) |
| pill-willet | <zoology> The willet. Origin: So named from its note. Source: Websters Dictionary (01 Mar 1998) |
| pillar | 1. The general and popular term for a firm, upright, insulated support for a superstructure; a pier, column, or post; also, a column or shaft not supporting a superstructure, as one erected for a monument or an ornament. "Jacob set a pillar upon her grave." (Gen. Xxxv. 20) "The place . . . Vast and proud, Supported by a hundred pillars stood." (Dryden) 2. Figuratively, that which resembles such a pillar in appearance, character, or office; a supporter or mainstay; as, the Pillars of Hercules; a pillar of the state. "You are a well-deserving pillar." "By day a cloud, by night a pillar of fire." (Milton) 3. A portable ornamental column, formerly carried before a cardinal, as emblematic of his support to the church. 4. The center of the volta, ring, or manege ground, around which a horse turns. From pillar to post, hither and thither; to and fro; from one place or predicament to another; backward and forward. Pillar saint. See Stylite. Pillars of the fauces. See Fauces. Origin: OE. PilerF. Pilier, LL. Pilare, pilarium, pilarius, fr. L. Pila a pillar. See Pile a heap. Source: Websters Dictionary (01 Mar 1998) |
| pillar cells | Cell's forming the outer and inner walls of the tunnel in the organ of Corti. Synonym: Corti's pillars, Corti's rods, pillar cells of Corti, tunnel cells. (05 Mar 2000) |
| pillar cells of Corti | Cell's forming the outer and inner walls of the tunnel in the organ of Corti. Synonym: Corti's pillars, Corti's rods, pillar cells of Corti, tunnel cells. (05 Mar 2000) |
| pillar of iris | The network of fibres (pectinate ligaments) at the iridocorneal angle between the anterior chamber of the eye and the venous sinus of the sclera; it contains spaces between the fibres that are involved in drainage of the aqueous humor, and is composed of two portions: the corneoscleral part, the part attached to the sclera, and the uveal part, the part attached to the iris. Synonym: reticulum trabeculare sclerae, Gerlach's valvula, Hueck's ligament, ligamentum annulare bulbi, pectinate ligaments of iridocorneal angle, pillar of iris, trabecular meshwork, trabecular network, trabecular zone. (05 Mar 2000) |
| pillars of fauces | See: palatoglossal arch, palatopharyngeal arch. (05 Mar 2000) |
| pillars of fornix | The columna fornicis and crus fornicis. (05 Mar 2000) |
| pillet | A small pill. (05 Mar 2000) |
| pillion | A panel or cushion saddle; the under pad or cushion of saddle; especially, a pad or cushion put on behind a man's saddle, on which a woman may ride. "His [a soldier's] shank pillion without stirrups." (Spenser) Origin: Ir. Pillin, pilliun (akin to Gael. Pillean, pillin), fr. Ir. & Gael. Pill, peall, a skin or hide, prob. Fr. L. Pellis. See Pell, Fell skin. Source: Websters Dictionary (01 Mar 1998) |
| pillow | 1. Anything used to support the head of a person when reposing; especially, a sack or case filled with feathers, down, hair, or other soft material. "[Resty sloth] finds the down pillow hard." (Shak) 2. <machinery> A piece of metal or wood, forming a support to equalize pressure; a brass; a pillow block. 3. A block under the inner end of a bowsprit. 4. A kind of plain, coarse fustian. Lace pillow, a cushion used in making hand-wrought lace. Pillow bier [OE. Pilwebere; cf. LG. Bure a pillowcase], a pillowcase; pillow slip. <machinery> Pillow block, a block, or standard, for supporting a journal, as of a shaft. It is usually bolted to the frame or foundation of a machine, and is often furnished with journal boxes, and a movable cover, or cap, for tightening the bearings by means of bolts; called also pillar block, or plumber block. Pillow lace, handmade lace wrought with bobbins upon a lace pillow. Pillow of a plow, a crosspiece of wood which serves to raise or lower the beam. Pillow sham, an ornamental covering laid over a pillow when not in use. Pillow slip, a pillowcase. Origin: OE. Pilwe, AS. Pyle, fr. L. Pilvinus. Source: Websters Dictionary (01 Mar 1998) |
| pillworm | <zoology> Any myriapod of the genus Iulus and allied genera which rolls up spirally; a galleyworm. Source: Websters Dictionary (01 Mar 1998) |
| pillwort | <botany> Any plant of the genus Pilularia; minute aquatic cryptograms, with small pill-shaped fruit; sometimes called peppergrass. Source: Websters Dictionary (01 Mar 1998) |