There are 4 definitions of LAC in English:

LAC

Line breaks: LAC

Entry from British & World English dictionary

abbreviation

  • Leading Aircraftman.

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Word of the day skosh
Pronunciation: skōSH
noun
a small amount; a little

There are 4 definitions of LAC in English:

lac1

Syllabification: lac

noun

  • A resinous substance secreted as a protective covering by the lac insect, used to make varnish, shellac, sealing wax, dyes, etc..

Origin

late Middle English: from medieval Latin lac, lac(c)a, from Portuguese laca, based on Hindi lākh or Persian lāk.

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Definition of lac in:

There are 4 definitions of LAC in English:

lac2

Syllabification: lac

adjective

[attributive] Biology
  • Denoting the ability of normal strains of the bacterium E. coli to metabolize lactose, or the genetic factors involved in this ability (which is lost in some mutant strains).
    More example sentences
    • These strains might not even use their lac gene products to metabolize lactose.
    • In addition to the lac operon, a number of other synthetic and natural genetic circuits have been analyzed for robustness and evolvability.
    • A metabolite of lactose binds to the lac repressor, changing the protein's shape and thereby causing it to loosen its grip on the DNA.

Origin

1940s: abbreviation of lactose.

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Definition of lac in:

There are 4 definitions of LAC in English:

lac3

Syllabification: lac

noun

  • variant spelling of lakh.

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Definition of lac in: