Definitions for cilium
ˈsɪl i əmcil·i·um

Princeton's WordNetRate this definition:0.0 / 0 votes

1. ciliumnoun

   a hairlike projection from the surface of a cell; provides locomotion in free-swimming unicellular organisms

2. eyelash, lash, ciliumnoun

   any of the short curved hairs that grow from the edges of the eyelids

WiktionaryRate this definition:0.0 / 0 votes

1. ciliumnoun

   A hairlike organelle projecting from a eukaryotic cell (such as unicellular organism or one cell of a multicelled organism). These structures serve either for locomotion by moving or as sensors.

WikipediaRate this definition:0.0 / 0 votes

1. Cilium

   The cilium, plural cilia (from Latin 'eyelash'), is a membrane-bound organelle found on most types of eukaryotic cell, and certain microorganisms known as ciliates. Cilia are absent in bacteria and archaea. The cilium has the shape of a slender threadlike projection that extends from the surface of the much larger cell body. Eukaryotic flagella found on sperm cells and many protozoans have a similar structure to motile cilia that enables swimming through liquids; they are longer than cilia and have a different undulating motion.There are two major classes of cilia: motile and non-motile cilia, each with a subtype, giving four types in all. A cell will typically have one primary cilium or many motile cilia. The structure of the cilium core called the axoneme determines the cilium class. Most motile cilia have a central pair of single microtubules surrounded by nine pairs of double microtubules called a 9+2 axoneme. Most non-motile cilia have a 9+0 axoneme that lacks the central pair of microtubules. Also lacking are the associated components that enable motility including the outer and inner dynein arms, and radial spokes. Some motile cilia lack the central pair, and some non-motile cilia have the central pair, hence the four types.Most non-motile cilia are termed primary cilia or sensory cilia and serve solely as sensory organelles. Most vertebrate cell types possess a single non-motile primary cilium, which functions as a cellular antenna. Olfactory neurons possess a great many non-motile cilia. Non-motile cilia that have a central pair of microtubules are the kinocilia present on hair cells.Motile cilia are found in large numbers on respiratory epithelial cells – around 200 cilia per cell, where they function in mucociliary clearance, and also have mechanosensory and chemosensory functions. Motile cilia on ependymal cells move the cerebrospinal fluid through the ventricular system of the brain. Motile cilia are also present in the fallopian tubes of female mammals where they function in moving the egg cell from the ovary to the uterus. Motile cilia that lack the central pair of microtubules are the cells of the embryonic primitive node termed nodal cells and these nodal cilia are responsible for the left-right asymmetry in bilateral animals.

ChatGPTRate this definition:0.0 / 0 votes

1. cilium

   A cilium is a short, microscopic, hair-like structure present on the surface of all mammalian cells. They are primarily responsible for locomotion and are also involved in various types of sensory perception such as touch and balance. Cilia function either by moving substances across the cell surface or by producing a current in the surrounding fluid. They are also crucial for cell growth and development.

Webster DictionaryRate this definition:0.0 / 0 votes

1. Ciliumnoun

   see Cilia

2. Etymology: [L., eyelid.]

WikidataRate this definition:0.0 / 0 votes

1. Cilium

   A cilium is an organelle found in eukaryotic cells. Cilia are slender protuberances that project from the much larger cell body. There are two types of cilia: motile cilia and non-motile, or primary cilia, which typically serve as sensory organelles. In eukaryotes, cilia and flagella together make up a group of organelles known as undulipodia. Eukaryotic cilia are structurally identical to Eukaryotic flagella, although distinctions are sometimes made according to function and/or length. For information on biologists' ideas about how the various flagella may have evolved, see evolution of flagella.

EntomologyRate this definition:0.0 / 0 votes

1. Cilium

   plural of Cilia

Matched Categories

1. • Organelle

How to pronounce cilium?

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How to say cilium in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of cilium in Chaldean Numerology is: 9

2. Pythagorean Numerology

   The numerical value of cilium in Pythagorean Numerology is: 4

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References

1. ^ Princeton's WordNet
   http://wordnetweb.princeton.edu/perl/webwn?s=cilium
2. ^ Wiktionary
   https://en.wiktionary.org/wiki/Cilium
3. ^ Wikipedia
   https://en.wikipedia.org/wiki/Cilium
4. ^ ChatGPT
   https://chat.openai.com
5. ^ Webster Dictionary
   https://www.merriam-webster.com/dictionary/cilium
6. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=cilium
7. ^ Entomology
   https://www.gutenberg.org/files/22748/22748-h/22748-h.htm#:~:text=cilium