单词 | air cell |
释义 | air celln. 1. a. Zoology and Anatomy. A specialized air-filled cavity within the body. Cf. air sac n. at air n.1 Compounds 2. ΘΚΠ the world > life > biology > physical aspects or shapes > indentation or cavity > [noun] > depression or cavity pita1275 holec1300 cella1398 den1398 follicle?a1425 purse?a1425 pocketa1450 fossac1475 cystis1543 trench1565 conceptory1576 vesike1577 vesicle1578 vault1594 socket1601 bladderet1615 cistern1615 cavern1626 ventricle1641 bladder1661 antrum1684 conceptaculum1691 capsule1693 cellule1694 loculus1694 sinus1704 vesicula1705 vesica1706 fosse1710 pouch1712 cyst1721 air chamber1725 fossula1733 alveole1739 sac1741 sacculus1749 locule1751 compartment1772 air cell1774 fossule1803 umbilicus1811 conceptacle1819 cœlia1820 utricle1822 air sac1835 saccule1836 ampulla1845 vacuole1853 scrobicule1880 faveolus1882 the world > animals > animal body > general parts > internal organs and systems > [noun] > lung or gill > air-sac air cell1774 airbag1782 air sac1835 1774 Philos. Trans. (Royal Soc.) 64 206 The air-cells, which are found in the soft parts of birds, have no communication with the cavity of the common cellular membrane of the body. 1787 J. Hawkins Life Johnson 590 The aircells of the lungs unusually distended. 1821 J. Forbes tr. R. T. H. Laennec Treat. Dis. Chest ii. 290 We hear, during inspiration and expiration, a slight but extremely distinct murmur, answering to the entrance of the air into, and its expulsion from, the air cells of the lungs. 1854 R. Owen Struct. Skeleton & Teeth in Orr's Circle Sci.: Org. Nature I. 167 An air-cell, or prolongation of the lung,..lines the cavity of the bone. 1883 Athenæum 29 Dec. 870/3 The air-cells of the flamingo, which were shown to..agree with those of storks in having the præbronchial air-cell much divided. 1902 A. Thomson in D. J. Cunningham Text-bk. Anat. 116 The middle ear..opens into the mastoid antrum and mastoid air-cells by the aditus ad antrum. 1959 Avian Dis. 3 57 Infective virus in the aerosol reached the air cells of the lung and the air sacs where it multiplied. 2002 T. C. Rae in N. Macleod & P. L. Forey Morphol., Shape & Phylogeny 47 The maxillary sinus, an air cell found lateral of the nasal cavity in most eutherian mammals. b. Botany. An intercellular space in the tissue (esp. the stem) of a plant; an air cavity. ΘΚΠ the world > plants > part of plant > cell or aggregate tissue > [noun] > tissue > other structures in tissue air cell1827 spherosome1954 1827 T. Nuttall Introd. Systematic & Physiol. Bot. ii. v. 291 The petiole and midrib of this description of leaves contain peculiar pneumatic or air cells closely resembling those..of aquatic plants. 1832 J. Lindley Introd. Bot. i. 28 Besides the common intercellular passages..there is another and a very remarkable cavity among the tissue of plants. This is the air cell; the lacuna of Link,..and the luftbehälter of the Germans. 1880 Bull. Torrey Bot. Club 7 3 Pores belong only to areolae or air-cells. 1911 H. W. Sparks in Apple Growing in Pacific Northwest 204 Bark is a non-conductor of heat and full of air cells, and is made so by nature to protect the growing wood against the extremes of temperature. 1924 J. S. Illick Tree Habits 42 If this pith is carefully examined it is found to consist of thin brown plates separated by wide and spacious air cells. 1998 Jrnl. Vegetation Sci. 9 382/2 The presence of a large medullary air cell, within the internode, is an anatomical indicator of the strong demand of F. sachalinensis for water. 2. An air-filled compartment or cavity in a manufactured article or natural substance. ΚΠ 1804 Trans. Amer. Philos. Soc. 6 i. 101 Thus three air-cells are formed, one by the smaller chest C and two by the larger one B. 1844 C. Darwin Let. 13 Nov. in Corr. (1987) III. 81 I think the Mexican obsidian, zoned with minute air-cells will interest you. 1878 T. H. Huxley Physiography (ed. 2) 64 The light instead of penetrating the snow, is thrown back from the ice-walls of each little air-cell or cavity. 1937 Amer. Home Apr. 82/1 (advt.) The natural wood fibres, felted together and pressed into boards, create millions of sealed air cells in each square foot of material. 1956 Life 2 Apr. 11/1 (advt.) Airfoam automatically adjusts itself to your weight. It contains millions of buoyant air cells that give you balanced support from head to toe. 2001 Independent 27 Mar. i. 4/2 Players with air cells in their heels were 4.3 times more likely to be injured than those with shoes without air cells. This entry has been updated (OED Third Edition, June 2008; most recently modified version published online December 2021). < n.1774 |
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