| latent period | A seemingly inactive period, as that between exposure of tissue to an injurious agent and the manifestation of response or that between the instant of stimulation and the beginning of response. (18 Nov 1997) |
|---|---|
| latent rat virus | A virus of the genus Parvovirus causing inapparent infection in rats; also recoverable from rat tumours. Synonym: latent rat virus. (05 Mar 2000) |
| latent reflex | A reflex which must be considered normal but which usually appears only under some pathologic circumstance that lowers its threshold. (05 Mar 2000) |
| latent schizophrenia | A preexisting susceptibility for developing overt schizophrenia under strong emotional stress. (05 Mar 2000) |
| latent stage | incubation period |
| latent syphilis | Infection with Treponema pallidum, after the manifestations of primary and secondary syphilis have subsided (or were never noticed), before any manifestations of tertiary syphilis have appeared. (05 Mar 2000) |
| latent tetany | A rather vague disorder recognised more in Europe than in the U.S. Consisting of a number of non-specific complaints, including generalised weakness, hand and foot cramping, distal paresthesia, anxiety, and depression. Some think it is a "normocalcaemic tetany"; others consider it "chronic hyperventilation syndrome." Typically with certain provoking procedures (e.g., limb ischemia, hyperventilation) in which case, obvious tetany develops. See: Trousseau's sign, Chvostek's sign, Erb sign. Synonym: crytotetany, spasmophilia. (05 Mar 2000) |
| latent typhoid | walking typhoid |
| latent virus | <virology> Virus integrated within host genome but inactive: may be reactivated by stress such as ultraviolet irradiation. (18 Nov 1997) |
| latent zone | That portion of the cerebral cortex, the stimulation of which produces no movement and a lesion of which produces no symptoms; mainly the more anterior areas of the frontal lobes. (05 Mar 2000) |
| laterad | <anatomy> Toward the side; away from the mesial plane; opposed to mesiad. Origin: L. Latus, lateris, side + ad to. Source: Websters Dictionary (01 Mar 1998) |
| lateral | 1. <anatomy> Denoting a position farther from the median plane or midline of the body or of a structure. 2. Pertaining to a side. Origin: L. Lateralis (18 Nov 1997) |
| lateral aberrant thyroid carcinoma | <tumour> A cervical nodule of thyroid carcinoma situated outside the thyroid gland, formerly thought to arise from ectopic thyroid tissue but now believed to be metastatic from an occult carcinoma within the gland. (05 Mar 2000) |
| lateral aberration | In spherical aberration, the distance between paraxial focus of central rays on the optic axis. (05 Mar 2000) |
| lateral alveolar abscess | An alveolar abscess located along the lateral root surface of a tooth. Synonym: pericemental abscess. (05 Mar 2000) |