单词 | alar |
释义 | Alarn. Agriculture. A growth regulator formerly applied to apples and other fruit in order to control the ripening process and to enhance the quality of the crop.Alar is a methylated hydrazide of succinic acid. Formula: C6H12N2O3.Alar was found to be a likely carcinogen and its use is now restricted to ornamental plants.A proprietary name in the United Kingdom. ΚΠ 1965 Plant Dis. Reporter 49 910 The compactness [of a cherry tree] is somewhat similar to that produced by the chemical ALAR, formerly referred to as B9 or B995. 1975 Nature 3 July 4/3 Peel roughness could be controlled by spraying Alar (a growth retardant) on the citrus. 1989 Sydney Morning Herald 24 Aug. 13/6 Alar was recently ‘voluntarily’ withdrawn ‘for food crops’ in both the US and in Australia. 2006 M. Pollan Omnivore's Dilemma ix. 152 In the history of the organic movement the Alar episode is a watershed. This is a new entry (OED Third Edition, September 2012; most recently modified version published online December 2021). alaradj. 1. Anatomy and Medicine. Of a structure: shaped like a wing; pterygoid. Also (of the chest): appearing to have wings. Cf. ala n.1 1. ΘΚΠ the world > space > shape > other specific shapes > [adjective] > like a wing alary1658 aliform1698 alate1743 alar1791 bats-wing1838 alated1879 the world > life > biology > physical aspects or shapes > projection or protuberance > [adjective] > wing alar1791 1791 W. Vaughan Expos. Princ. Anat. & Physiol. I. 224 The Great and Small Alar Ligaments. Such are two broad ligaments resembling wings. 1825 J. F. South Dissector's Man. (new ed.) 419 Between the lateral and the alar cartilages are small cartilaginous bodies. 1839–47 Todd's Cycl. Anat. & Physiol. III. 829/2 The alar bones..are in reality distinct elements of the cranium. 1896 H. A. Hare Pract. Diagnosis i. viii. 250 The most familiar of these is the so-called phthisical chest, which has been called the ‘alar chest’, because the scapulæ stand out from the back like wings. 1929 W. K. Gregory Our Face from Fish to Man ii. 167 The lateral or alar cartilages of the external nose represent a forward growth of the margins of the olfactory capsules. 1968 Brain 91 657 Further stability is given by the paired alar ligaments running from the dorso-lateral aspect of the dens to the medial surfaces of the occipital condyles. 2011 S. R. Baker Princ. Nasal Reconstruction xx. 486/1 Alar cartilages are not commonly modified during reconstruction of the nose. 2. Zoology. Of or relating to a wing or wings (of a bird or other animal). Cf. alary adj. ΘΚΠ the world > animals > animal body > general parts > body and limbs > [adjective] > relating to limbs > relating to wings or fins alar1792 1792 J. Leslie tr. Comte de Buffon Nat. Hist. Birds III. 322 The entire length of the Hermit Ouzel is about seven inches and a half, its alar extent twelve. 1834 T. Nuttall Man. Ornithol. U.S. & Canada: Water Birds 266 The Skimmer is about 19 inches in length, the closed wings extend beyond the tail 4 inches: alar stretch 44 inches! 1860 R. W. Emerson Beauty in Conduct of Life (London ed.) 258 The bone or the quill of the bird gives the most alar strength with the least weight. 1874 E. Coues Birds Northwest 544 Audubon mentions one nearly ten feet in alar expanse. 1939 T. L. Green Pract. Animal Biol. i. 188 Their area is increased by the alar membranes at the shoulder and arm pit which can be seen by stretching the wings outwards. 1947 Ann. Entomol. Soc. Amer. 40 669 The wing venation is similar to that of Neocatocha from which it differs in lacking alar macrotrichia. 1999 Vanity Fair (N.Y.) Nov. 270/3 By 1952 the Urquharts had developed an ‘alar tag’, as they called it, that could be glued to the leading edge of a monarch's forewing and would not fall off or impede its flight. 3. Anatomy and Botany. Of or relating to the axilla (of the human body) or an axil (of a plant); = axillary adj.; (now rare). In later use also: designating the cells located at the basal angles of the leaf of a bryophyte. Cf. ala n.1 2a. ΘΚΠ the world > life > the body > external parts of body > limb > arm > [adjective] > armpit axillary1615 axillar1651 subaxillary1689 alar1810 the world > life > biology > physical aspects or shapes > physical arrangement or condition > [adjective] > composed of many parts > branching dichotomizing1606 branching1720 dichotomous1752 ramulose1753 subramose1797 trichotomous1801 tetrachotomous1829 ramellose1853 alar1858 biramose1877 biramous1877 1810 A. Scott tr. A. Murray Descr. Arteries Human Body (new ed.) i. 51 The Alar Thoracic [L. Thoracica alaris]. 1823 G. Crabb Universal Technol. Dict. I. at Alaris An alar peduncle, or one that stands in the axillæ of the branches. 1850 Bot. Gaz. 2 102 The points of vegetation of the cellular tissue of the leaf constitute special characters for the tribes, as the Dicranaceæ are distinguished from the Leptotrichaceæ by the alar cells. 1858 A. Gray Introd. Struct. & Systematic Bot. 395 Alar. From ala in the sense of axilla, therefore axillary or in the forks. 1880 Quain's Elements Anat. (ed. 8) I. 489 It is also joined by the several veins corresponding with the branches of the axillary artery, viz., the two circumflex and the subscapular veins from the shoulder, the alar vein from the axilla, [etc.]. 1961 Bryologist 64 367 The general condition is for the median cells to have longitudinal structure and the basal and alar cells transverse structure. 2007 A. E. Newton & R. S. Tangney Pleurocarpous Mosses 258 Characters in African taxa include leaves with numerous alar cells forming a triangular to rectangular alar region. This entry has been updated (OED Third Edition, September 2012; most recently modified version published online June 2022). < n.1965adj.1791 |
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