Air cell

Air cell
Cell Cell, n. [OF. celle, fr. L. cella; akin to celare to hide, and E. hell, helm, conceal. Cf. {Hall}.] 1. A very small and close apartment, as in a prison or in a monastery or convent; the hut of a hermit. [1913 Webster]

The heroic confessor in his cell. --Macaulay. [1913 Webster]

2. A small religious house attached to a monastery or convent. ``Cells or dependent priories.'' --Milman. [1913 Webster]

3. Any small cavity, or hollow place. [1913 Webster]

4. (Arch.) (a) The space between the ribs of a vaulted roof. (b) Same as {Cella}. [1913 Webster]

5. (Elec.) A jar of vessel, or a division of a compound vessel, for holding the exciting fluid of a battery. [1913 Webster]

6. (Biol.) One of the minute elementary structures, of which the greater part of the various tissues and organs of animals and plants are composed. [1913 Webster]

Note: All cells have their origin in the primary cell from which the organism was developed. In the lowest animal and vegetable forms, one single cell constitutes the complete individual, such being called unicelluter orgamisms. A typical cell is composed of a semifluid mass of protoplasm, more or less granular, generally containing in its center a nucleus which in turn frequently contains one or more nucleoli, the whole being surrounded by a thin membrane, the cell wall. In some cells, as in those of blood, in the am[oe]ba, and in embryonic cells (both vegetable and animal), there is no restricting cell wall, while in some of the unicelluliar organisms the nucleus is wholly wanting. See Illust. of {Bipolar}. [1913 Webster]

{Air cell}. See {Air cell}.

{Cell development} (called also {cell genesis}, {cell formation}, and {cytogenesis}), the multiplication, of cells by a process of reproduction under the following common forms; segmentation or fission, gemmation or budding, karyokinesis, and endogenous multiplication. See {Segmentation}, {Gemmation}, etc.

{Cell theory}. (Biol.) See {Cellular theory}, under {Cellular}. [1913 Webster]

The Collaborative International Dictionary of English. 2000.

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  • air cell — n a cavity or receptacle for air esp ALVEOLUS (b) * * * 1. any minute bodily chamber filled with air, such as an alveolus of the lung. 2. a cavity containing air and surrounded by a bodily structure, usually one of the bones of the head, such as… …   Medical dictionary

  • Air cell — 1. (Bot.) A cavity in the cellular tissue of plants, containing air only. [1913 Webster] 2. (Anat.) A receptacle of air in various parts of the system; as, a cell or minute cavity in the walls of the air tubes of the lungs; the air sac of birds;… …   The Collaborative International Dictionary of English

  • air-cell — airˈ cavity or airˈ cell noun (botany) An intercellular space containing air • • • Main Entry: ↑air …   Useful english dictionary

  • air cell — air′ cell n. bot zool. anat. a cavity or receptacle of the body that contains air …   From formal English to slang

  • air cell — noun a tiny sac for holding air in the lungs; formed by the terminal dilation of tiny air passageways • Syn: ↑alveolus, ↑air sac • Derivationally related forms: ↑alveolate (for: ↑alveolus) • Hypernyms: ↑ …   Useful english dictionary

  • air cell — 1. Anat., Zool., Bot. a cavity or receptacle containing air. 2. Elect. a cell in which the positive electrode is depolarized by the oxygen in the air. [1780 90] * * * …   Universalium

  • air cell — /ˈɛə sɛl/ (say air sel) noun a small cavity full of air in plant or animal tissue; air sac; air bladder …  

  • air cell — noun an air pocket at the bottom end of an egg formed from contraption of the eggs contents through loss of moisture and cooling from its initial filled state …   Wiktionary

  • mastoid air cell — n MASTOID CELL …   Medical dictionary

  • Air (visual novel) — Air Air original visual novel cover. Depicted are Kano (left), Misuzu (center), and Minagi (right). Genre Drama, Fantasy, Romance …   Wikipedia

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