| hodoneuromere | <embryology> An obsolete term for a metameric segment of the neural tube with its pair of nerves and their branches. Origin: G. Hodos, path, + neuron, nerve, + meros, part (05 Mar 2000) |
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| hodophobia | <psychology> Morbid fear of traveling. Origin: G. Hodos, path, + phobos, fear (05 Mar 2000) |
| hoe | 1. A tool chiefly for digging up weeds, and arranging the earth about plants in fields and gardens. It is made of a flat blade of iron or steel having an eye or tang by which it is attached to a wooden handle at an acute angle. 2. <zoology> The horned or piked dogfish. See Dogfish. Dutch hoe, one having the blade set for use in the manner of a spade. Horse hoe, a kind of cultivator. Origin: OF. Hoe, F. Houe; of German origin, cf. OHG. Houwa, howa, G. Haue, fr. OHG. Houwan to hew. See Hew to cut. Source: Websters Dictionary (01 Mar 1998) |
| hoe excavator | A single-beveled dental excavator, with the blade at an angle to the axis of the handle and the cutting edge perpendicular to the plane of the angle. (05 Mar 2000) |
| hoe scaler | A hoe-shaped scaler with a very short blade. (05 Mar 2000) |
| hoe-33258 | <chemical> 2-(2-(4-hydroxyphenyl)-6-benzimidazolyl)-6-(1-methyl-4-piperazyl)-benzimidazole trihydrochloride. A benzimidazole antifilarial agent; it is fluorescent when it binds to certain nucleotides in DNA, thus providing a tool for the study of DNA replication; it also interferes with mitosis. Pharmacological action: filaricides, fluorescent dyes. Chemical name: Phenol, 4-(5-(4-methyl-1-piperazinyl)(2,5'-bi-1H-benzimidazol)-2'-yl)-, trihydrochloride (12 Dec 1998) |
| Hoechst 33258 | <chemical> A fluorescent dye that is a specific stain for DNA and can therefore be used to visualise chromosomes and to monitor animal cell cultures for contamination by microorganisms such as mycoplasma. (18 Nov 1997) |
| Hoechst 33342 | <chemical> A fluorescent dye that is a specific stain for DNA and is often used to stain the functioning vasculature in in vivo models. The dye is injected intravenously and the tumour excised 1 minute later. (05 May 1997) |
| hoemother | <zoology> The basking or liver shark. Synonym: homer. See Liver shark, under Liver. Origin: A local Orkney name; cf. Icel.har. Source: Websters Dictionary (01 Mar 1998) |
| Hoeppli, Reinhard | <person> German parasitologist, *1893. See: Splendore-Hoeppli phenomenon. (05 Mar 2000) |
| hof | The hollow in the cytoplasm of a cell that lodges the nucleus. Origin: Ger. Court (05 Mar 2000) |
| Hofbauer cell | A large cell in the connective tissue of the chorionic villi; it appears to be a type of phagocyte. (05 Mar 2000) |
| Hofbauer, J Isfred | <person> U.S. Gynecologist, 1878-1961. See: Hofbauer cell. (05 Mar 2000) |
| Hoffa's operation | In congenital dislocation of the hip, hollowing out the acetabulum and reduction of the head of the femur after severing the muscles inserted into the upper portion of the bone. (05 Mar 2000) |
| Hoffa, Albert | <person> German surgeon, 1859-1908. See: Hoffa's operation. (05 Mar 2000) |