| piliform | <botany> Resembling hairs or down. Origin: L. Pilus hair. Source: Websters Dictionary (01 Mar 1998) |
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| pilimiction | Passage of hairs in the urine, as in cases of dermoid tumours, or of threads of mucus in the urine. Origin: L. Pilus, hair, + mictio, urination (05 Mar 2000) |
| pilin | 1. General term for the protein subunit of pilus. 2. Protein subunit (7.2 kD) of f pili, sex pili coded for by the F plasmid. (18 Nov 1997) |
| piling unmerchantable material | (PUM) A logging contract requirement to remove and pile unmerchantable woody material of a specified size. (05 Dec 1998) |
| pill | The peel or skin. "Some be covered over with crusts, or hard pills, as the locusts." Origin: Cf. Peel skin, or Pillion. 1. To deprive of hair; to make bald. 2. To peel; to make by removing the skin. "[Jacob] pilled white streaks . . . In the rods." (Gen. Xxx. 37) Origin: Cf. L. Pilare to deprive of hair, and E. Pill, n. (above). 1. A medicine in the form of a little ball, or small round mass, to be swallowed whole. 2. Figuratively, something offensive or nauseous which must be accepted or endured. <zoology> Pill beetle, any terrestrial isopod of the genus Armadillo, having the habit of rolling itself into a ball when disturbed. Synonym: pill wood louse. Origin: F. Pilute, L. Pilula a pill, little ball, dim. Of L. Pila a ball. Cf. Piles. Source: Websters Dictionary (01 Mar 1998) |
| pill mass | The mixture of drug(s), excipients, diluents and binders with a suitable amount of liquid to form a plastic mass which can be rolled into a long rod and cut into the appropriate number of units for pills to be rolled from. Synonym: pill mass. (05 Mar 2000) |
| 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) |