English Words Starting With K

• kinetic art

  nounC1
  /kɪˌnɛt.ɪk ˈɑːt/A genre of visual art, primarily sculpture, that incorporates actual or apparent movement as a fundamental element of the work.
• kinetic energy

  nounLow
  /kɪˌnɛtɪk ˈɛnədʒi/The energy an object possesses due to its motion.
• kinetic potential

  nounLow / Technical
  /kɪˈnetɪk pəˈtenʃ(ə)l/A state of possessing energy that is ready to be transformed into motion or activity; the latent capacity for dynamic action.
• kinetic theory

  nounC2
  /kɪˌnɛtɪk ˈθɪəri/A scientific theory that explains the behavior of matter, particularly gases, by describing it as being composed of a large number of small particles (atoms or molecules) that are in constant, random motion.
• kinetic theory of gases

  nounLow
  /kɪˌnɛtɪk ˈθɪəri əv ˈɡæsɪz/A scientific theory that explains the physical properties of gases by describing them as consisting of numerous tiny particles in constant, random motion.
• kinetic theory of heat

  nounLow/Very Low (Highly technical term)
  /kɪˌnɛtɪk ˈθɪəri əv hiːt/The scientific theory that heat is the result of the motion of particles (atoms or molecules) within a substance.
• kinetic theory of matter

  nounC2 / Technical
  /kɪˌnɛt.ɪk ˈθɪə.ri əv ˈmæt.ər/A scientific theory that explains the physical properties of matter (solids, liquids, gases) in terms of the constant motion of its constituent particles (atoms or molecules).
• kineticism

  nounC1-C2
  /kɪˈnɛt.ɪ.sɪ.zəm/The quality or principle of possessing, producing, or exhibiting motion; movement.
• kinetics

  nounC1/C2
  /kɪˈnɛtɪks/The branch of chemistry and physics that studies the rates of chemical reactions or physical processes, and the factors that influence those rates.
• kinetin

  nounC2/Technical
  /ˈkʌɪnətɪn/A synthetic plant hormone (cytokinin) that promotes cell division and delays aging in plant tissues.
• kinetochore

  nounVery Low (Specialized)
  /kɪˈniː.tə(ʊ)ˌkɔː/A complex protein structure on a chromosome to which microtubules attach during cell division to pull sister chromatids apart.
• kinetograph

  nounC2
  /kɪˈniːtəˌɡrɑːf/An early motion-picture camera or device for recording movement on film.
• kinetoplast

  nounC2
  /kɪˈniːtə(ʊ)plɑːst/A specialized, self-replicating structure containing DNA, found within the single mitochondrion of certain parasitic protozoa, particularly trypanosomes.
• kinetoscope

  nounRare
  /kɪˈniːtəskəʊp/An early device for viewing moving pictures, invented by Thomas Edison and William Dickson, in which a film strip was viewed through a peephole as it passed behind a rotating shutter.
• kinetosis

  nounRare / Technical
  /ˌkʌɪnɪˈtəʊsɪs/Motion sickness; a condition characterized by nausea and dizziness caused by motion.
• kinfolk

  plural-nounLow
  /ˈkɪnˌfəʊk/One's relatives, especially by blood or close ancestral ties; family.
• king

  adjectivenounverbverb-intransitiveverb-transitiveA2
  /kɪŋ/The male ruler of an independent state, especially one who inherits the position by right of birth.
• king bee

  nounLow
  /ˌkɪŋ ˈbiː/A male bee, especially a drone, in a colony of social bees (honeybees). It is the mate of the queen bee.
• king charles spaniel

  nounC1
  /ˌkɪŋ ˌtʃɑːlz ˈspænjəl/A small breed of toy spaniel dog, known for its domed head, short nose, large dark eyes, and long, soft ears.
• king closer

  nounVery low
  /ˌkɪŋ ˈkləʊ.zər/A brick cut to approximately three-quarters of its length, used to close the bond pattern at corners and ends of walls.

Showing 1341–1360 of 2547 words.