A dictionary of terms used in medicine and the collateral sciences / by the late Richard D. Hoblyn.

  • Richard Hoblyn
Date:
1899
Catalogue details

Licence: Public Domain Mark

Credit: A dictionary of terms used in medicine and the collateral sciences / by the late Richard D. Hoblyn. Source: Wellcome Collection.

    794/858 page 780
    UNO—UNI U'NCTIO; U'NCTUS{ ii'iKjerc, to anoint). The former term denotes the act of anointing or smearing with an unguent. The latter denotes an ointment or unguent. See Preface, par. 3. UNDULA'TORY THEORY OF LIGHT {undula, a little wave). A theory founded on the assump- tion that light is the result of vibrations existing among the particles of an exceedingly attenu- ated essence, or ethereal medium. UNGUE'NTUM {ungere, to anoint). An ointment; an unctu- ous substance for external appli- cation. When composed chieHy of wax, it is termed cerate ; when fats or resins are used, it is an ointment; if distilled, fragi-ant waters or essential oils are em- ployed, it becomes a pomatum or pomade ; occasionally, with refer- ence to appearance, it acquires the name butter, paste, &c. U'NGUES ADU'NGI. Curved nails ; arched and hooked nails, frequently observed in scrofulous and consumptive persons, and in long-standing valvular disease of the heart. UNGUI'GULATE {unguiculus, dim. of imguis, a finger-nail). Clawed ; a term applied to a petal furnished with an unguis or claw, as in the pink. U'NGUIS. Literally, a finger- nail. Hence the term is applied to a collection of pus between the laminffi of the cornea, when the abscess appears to be shaped like a finger-nail. The term ungula, or claw, has also been applied to a collection of matter in the eye. Ungula is derived from unguis, and the two terms probably denote the same disease. 1. Phalanges unguium. The name of the third, extreme, or distal phalanges of the fingers and toes. 2. Unguis (in Botany). The lower part of a petal which tapers conspicuously towards the base, as in tlio pink. The upper ])art is called the limh. The petal itself is termed unguiciUate. UNICELLUI-AR PLANTS. Plants consisting each of a single cell, in which resides the entire organism, and the power of both nutrition and reproduction, as the yeast-plant. UNI-EQUIVALENT. Another term for mon-atomic or monad, as applied to elements. See Atomi- city. UNILO'CULAR {unus, one, loculus, a cell). Having one cell or cavity, as a legume. JBilocular, trilocular, multilocular, are terms denoting two-celled, three-celled, and many-celled, respectively. UNION BY THE FIRST IN- TENTION. The growing together of the opposite surfaces of a wound, when brought into contact, without suppuration. When wounds heal by suppurating, granulating, &c., they are sometimes said to heal by the second intention. U'NIPOLAR. A term applied by Ehrmann to substances of the imperfect conducting power, which are capable of receiving only one kind of electricity, when made to form links in the Voltaic chain. UNISE'XUAL {units scxus, one sex). Of one sex only ; a term applied to plants whose flowers contain a pistil only, or a stamen only, as distinguished from her- maphrodite plants, whose flowers contain both organs of repro- duction. UNIT-JAR. An ap])aratus con- trived by Mr Harris for charging Leydeu jars with known proportions of electricity, the quantity of elec- tricity employed being proportioned to the number of charges.
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