hydrometer |
1. <physics> An instrument for determining the specific gravities of liquids, and thence the strength spirituous liquors, saline solutions, etc. It is usually made of glass with a graduated stem, and indicates the specific gravity of a liquid by the depth to which it sinks in it, the zero of the scale marking the depth to which it sinks in pure water. Extra weights are sometimes used to adapt the scale to liquids of different densities. 2. An instrument, variously constructed, used for measuring the velocity or discharge of water, as in rivers, from reservoirs, etc, and called by various specific names according to its construction or use, as tachometer, rheometer, hydrometer, pendulum, etc.; a current gauge. Origin: Hydro-, 1: cf. F. Hydrometre. Source: Websters Dictionary (01 Mar 1998) |
|---|---|
hydrometra |
Accumulation of thin mucus or other watery fluid in the cavity of the uterus. Origin: hydro-+ G. Metra, uterus (05 Mar 2000) |
hydrometric |
Relating to hydrometry or the hydrometer. (05 Mar 2000) |
hydrometrocolpos |
<radiology> Accumulation of secretions in the vagina and uterus, dilatation of the vagina proximal to a congenital obstruction (e.g., imperforate hymen), produces a palpable, fixed midline mass, may cause hydronephrosis, AXR: abdominal mass extending from pelvis, ultrasound: cystic mass posterior to bladder with scattered echoes due to cellular material and blood Cf: hydrometros = uterine dilatation only (obstruction at cervix) (12 Dec 1998) |
hydrometrograph |
An instrument for determining and recording the quantity of water discharged from a pipe, orifice, etc, in a given time. Origin: Hydro-, 1 + Gr. Measure + -graph. Source: Websters Dictionary (01 Mar 1998) |
hydrometry |
Determination of the specific gravity of a fluid by means of a hydrometer. (05 Mar 2000) |
hydromica |
<chemical> A variety of potash mica containing water. It is less elastic than ordinary muscovite. <chemical> Hydromica schist, a mica schist characterised by the presence of hydromica. It often has a silky luster and almost soapy feel. Origin: Hydro-, 1 + mica. Source: Websters Dictionary (01 Mar 1998) |
hydromicrocephaly |
Microcephaly associated with an increased amount of cerebrospinal fluid. (05 Mar 2000) |
hydromorphone |
<chemical> 4,5-alpha-epoxy-3-hydroxy-17-methylmorphinan-6-one. An opioid analgesic made from morphine and used mainly as an analgesic. It has a shorter duration of action than morphine. Pharmacological action: analgesics, opioid, narcotics. Chemical name: Morphinan-6-one, 4,5-epoxy-3-hydroxy-17-methyl-, (5alpha)- (12 Dec 1998) |
hydromorphone hydrochloride |
A synthetic derivative of morphine, with analgesic potency about 10 times that of morphine. Synonym: dihydromorphinone hydrochloride. (05 Mar 2000) |
hydromphalus |
A cystic tumour at the umbilicus, most commonly a vitellointestinal cyst. Origin: hydro-+ G. Omphalos, umbilicus (05 Mar 2000) |
hydromyelia |
An increase of fluid in the dilated central canal of the spinal cord, or in congenital cavities elsewhere in the cord substance. Origin: hydro-+ G. Myelos, marrow (05 Mar 2000) |
hydromyelocele |
Protrusion of a portion of cord, thinned out into a sac distended with cerebrospinal fluid, through a spina bifida. Origin: hydro-+ G. Myelos, marrow, + kele, tumour, hernia (05 Mar 2000) |
hydromyoma |
<tumour> A leiomyoma that contains cystlike foci of proteinaceous fluid; hydromyoma's occur more frequently in leiomyomas of the uterus, as a result of degenerative changes. Origin: hydro-+ G. Mys, muscle, + -oma, tumour (05 Mar 2000) |
hydronephrosis |
<nephrology> Abnormal enlargement of a kidney, may occur secondary to acute ureteral obstruction (kidney stone) or chronic kidney disease. (27 Sep 1997) |