| Petersen's bag | An obsolete device consisting of a rubber bag introduced into the rectum and inflated to push up the bladder to facilitate suprapubic cystotomy. (05 Mar 2000) |
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| Petersen, C | <person> German surgeon, 1845-1908. See: Petersen's bag. (05 Mar 2000) |
| peterwort | <botany> See Saint Peter's-wort, under Saint. Source: Websters Dictionary (01 Mar 1998) |
| pethidine | Ethyl 1-methyl-4-phenylisonipecotate hydrochloride;a widely used narcotic analgesic. Synonym: pethidine. (05 Mar 2000) |
| petiolary | <botany> Of or pertaining to petiole, or proceeding from it; as, a petiolar tendril; growing or supported upon a petiole; as, a petiolar gland; a petiolar bud. Origin: Cf. F. Petiolarie. Source: Websters Dictionary (01 Mar 1998) |
| petiolate | Having a stem or pedicle. Synonym: petioled. Origin: L. Petiolus (05 Mar 2000) |
| petiolated | <botany> Having a stalk or petiole; as, a petioleate leaf; the petiolated abdomen of certain Hymenoptera. Source: Websters Dictionary (01 Mar 1998) |
| petiole | The stalk portion of a leaf. (09 Oct 1997) |
| petioled | Having a stem or pedicle. Synonym: petioled. Origin: L. Petiolus (05 Mar 2000) |
| petiolulate | <botany> Supported by its own petiolule. Source: Websters Dictionary (01 Mar 1998) |
| petiolule | The stalk portion of a leaflet. (09 Oct 1997) |
| petiolus | A stem or pedicle. Synonym: petiole. Origin: L. Dim. Of pes (foot), the stalk of a fruit (05 Mar 2000) |
| petiolus epiglottidis | The lower end or pedicle of the cartilage of the epiglottis, attached to the superior notch of the thyroid cartilage. Synonym: petiolus epiglottidis. (05 Mar 2000) |
| petit mal | <neurology> A type of seizure (absence seizures) that in contrast to the grand mal seizure, are noted for their brevity and for the degree of loss of awareness (brief staring spell) accompanied by minimal motor manifestations. A common form of childhood epilepsy. (06 Oct 1997) |
| petit mal epilepsy | A generalised epilepsy syndrome characterised by the onset of absence seizures in childhood, typically at age six or seven years. There is a strong genetic predisposition and girls are affected more often than boys. EEG reveals generalised 3 Hz spike-wave activity on a normal background. Prognosis for remission is good if the patient does not also have generalised tonic-clonic seizures. See: absence. Synonym: petit mal epilepsy, pyknolepsy. (05 Mar 2000) |