Dictionary.com
Thesaurus.com

lac

1 American  
[lak] / læk /

noun

  1. a resinous substance deposited on the twigs of various trees in southern Asia by the female of the lac insect: used in the manufacture of varnishes, sealing wax, etc., and in the production of a red coloring matter.


lac 2 American  
[lahk] / lɑk /

noun

  1. lakh.


lac 3 American  
[lak] / læk /

noun

  1. (in prescriptions) milk.


LAC 4 American  
  1. leading aircraftsman.


LAC 1 British  

abbreviation

  1. leading aircraftman

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

lac 2 British  
/ læk /

noun

  1. a resinous substance secreted by certain lac insects, used in the manufacture of shellac

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

lac 3 British  
/ lɑːk /

noun

  1. a variant spelling of lakh

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of lac1

First recorded in 1400–50; Middle English lacca, from Dutch lak or French lac, laque, from Old French lacce, lache, from Medieval Latin lac, lacca, from Arabic lakk, from Persian lak, from Hindi lākh, from Prakrit lākkhā, from Sanskrit lākṣā

Origin of lac3

From Latin

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The 80-seat cafe serves Vietnamese classics such as fish sauce wings and luc lac shaking beef along with fusion dishes, such as the fried chicken with pandan waffles.

From Seattle Times • May 4, 2024

Lactose acts as an inducer of the lac operon when glucose is absent.

From Textbooks • Jun. 9, 2022

Therefore it is ON by default whereas the lac operon is repressible and is OFF by default.

From Textbooks • Jun. 9, 2022

The lac operon undergoes transcriptional attenuation and therefore is OFF by default, whereas the trp operon is not regulated by any such mechanism and is ON by default.

From Textbooks • Jun. 9, 2022

Au del� de ce Sault on trouue le petit lac, sur les bords duquel du cost� du Nord sont les Roquai.

From History of the Discovery of the Northwest by John Nicolet in 1634 With a Sketch of his Life by Butterfield, Consul Willshire