| per | perineal; periodicity, periodic |
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| lunar periodicity | Any rhythmic phenomenon that follows a lunar or monthly cycle. (05 Mar 2000) |
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| lunar | 1. Of or pertaining to the moon; as, lunar observations. 2. Resembling the moon; orbed. 3. Measured by the revolutions of the moon; as, a lunar month. 4. Influenced by the moon, as in growth, character, or properties; as, lunar herbs. <medicine> Lunar caustic Tables for correcting an observed lunar distance on account of refraction and parallax. Lunar year, the period of twelve lunar months, or 354 days, 8 hours, 48 minutes, and 34.38 seconds. Origin: L. Lunaris, fr. Luna the moon. See Luna, and cf. Lunary. 1. <astronomy> A lunar distance. 2. <anatomy> The middle bone of the proximal series of the carpus. Synonym: semilunar, and intermedium. Source: Websters Dictionary (01 Mar 1998) |
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| lunar caustic | Silver nitrate mixed with silver chloride and allowed to dry. Usually applied to the ends of small wooden applicator sticks or made available as pencils. These are used after wetting as a caustic chemical for the removal of warts. Synonym: fused silver nitrate, lunar caustic. (05 Mar 2000) |
| malarial periodicity | A clinical rhythmicity reflected in periodic fevers and chills recurring at approximately 48-hour intervals in tertian malaria (Plasmodium vivax or P. Ovale) or at 72-hour intervals in quartan malaria (Periodicity malariae); the rhythm of tertian or 48-hour cycles is frequently modified in malignant tertian or falciparum malaria (P. Falciparum); associated with release of merozoites from red cells during erythrocytic schizogony, although the controlling mechanism for the synchronous release is unknown. (05 Mar 2000) |
| periodicity | The quality or state of being periodical, or regularly recurrent; as, the periodicity in the vital phenomena of plants. Origin: Cf. F. Periodicite. Source: Websters Dictionary (01 Mar 1998) |
| nocturnal periodicity | A circadian rhythm with the periodicity expressed during nighttime hours, as in the night release of microfilariae of the human filaria Wuchereria bancrofti into the peripheral blood; this type of periodicity is found in regions where the vector mosquito is a night-biting species. (05 Mar 2000) |
| subperiodic periodicity | A modified circadian rhythm in which the periodicity is not clearcut, as in certain zoonotic strains of Malayan filariasis caused by Brugia malayi; as in examples of strict filarial periodicity, this response is correlated with the biting habits of the vector insect (mosquito), although the precise mechanism inducing this microfilarial response is not clearly established. (05 Mar 2000) |
| diurnal periodicity | A circadian rhythm with primary expression of the periodicity during daylight hours, as in the release of microfilariae of Loa loa into the peripheral blood during the day, with far fewer released at night; associated with the day-biting habits of the vector, Chrysops species. (05 Mar 2000) |
| filarial periodicity | The circadian rhythm observed in the appearance of filarial microfilariae in the peripheral blood. See: diurnal periodicity, nocturnal periodicity. (05 Mar 2000) |
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