Definition of focal in English:

focal

Syllabification: fo·cal
Pronunciation: /ˈfōk(ə)l
 
/

adjective

1Of or relating to the center or main point of interest: tapestries in which birds or animals provide the focal interest
More example sentences
  • But we do intend to put something back that we can all be proud of to make a new focal centre of the village again.
  • The third plot while without a central focal character is the most important thread: the coming of the Second Boxer Rebellion in China.
  • Dubey cuts the figures at the edges and at unusual angles to create focal interest in the compositions.
1.1 Optics Of or relating to the focus of a lens.
More example sentences
  • Huygens discovered the law of refraction to derive the focal distances of lenses.
  • Residual longitudinal chromatic aberration introduces a focal shift for any wavelength variation.
  • There are now Bifocal lenses, a type of contact lens design that includes two focal areas: one for near, one for distance.
1.2(Of a disease or medical condition) occurring in one particular site in the body.
More example sentences
  • The laryngeal inlet showed chronic inflammatory changes and the tongue showed focal congestion and mild inflammatory changes.
  • If CAV is present, then options such as coronary interventions may be used, depending on whether focal disease is present.
  • In 141 autopsies of people without focal neurological disease, 57 probably had Alzheimer's disease.

Origin

late 17th century: from modern Latin focalis, from Latin focus, or directly from focus.

Derivatives

focally

adverb
More example sentences
  • Grossly, the surgical specimen consisted of a 4.0 x 3.5 X 3.2-cm irregular, firm, tan, focally hemorrhagic mass.
  • Histologically, the blastomous tumor cells were present in diffuse sheets, which focally formed malignant cartilage.
  • The mitotic activity was focally brisk, with an average of 8 to 10 mitoses per highpower field in these areas.

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