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weed killer

weed killer

4 3.2
A substance that kills unwanted plants in gardens or on lawns
  • noun
  • /wiːd ˈkɪlər/
translation icon : herbicida
  • Using a weed killer can help protect your garden from invasive species.
  • chemical weed killer
  • toxic weed killers
  • insecticides and weed killers

So if you still want to avoid insecticides and weed killers and you want to eat fruits and vegetables, how do you know which non organic options are best?

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Examples

  • It is this ability to shut down physiological functions and predispose plants to killer diseases that makes it such an effective broad-spectrum weed killer.

    Blog text (20)
  • She carefully applied the weed killer to the areas overrun with dandelions.

  • When are you going to have a sale on weed killer?

    Fiction book (1990)
  • Vinegar is an effective weed killer, but it works only when it is used full strength on a hot sunny day.

    Blog text (13)
  • This means farmers must buy seed and the Roundup weed killer every year from Monsanto.

    Blog text (15)
  • The use of powerful weed killers reinforced the Manichean dualism of crops as friends and weeds as enemies.

    Academic text (1991)
  • Monsanto then patented the seeds and has strong-armed our farmers and farmers throughout the world to use their seeds and weed killer.

    Blog text (15)
  • Then in 1959, there was the "great cranberry scare" that led to the virtual loss of an entire year's crop due to contamination by a weed killer that was suspected of causing cancer.

    Blog text (13)
  • Roundup-Ready GMO soy is Argentina's main crop, and Monsanto's Roundup weed-killer is used in great quantities.

    Blog text (29)
  • Gardeners often use weed killer to eliminate unwanted plants in their flower beds.

Synonyms

herbicide
vsweed killer
  • Specialized
20 4.1

A chemical that kills unwanted plants like weeds

focuses on destroying plants rather than preventing their growth
glyphosate
vsweed killer
  • Specialized
7 7.0

A chemical used to kill weeds on farms and in gardens

refers generally to any chemical for killing unwanted plants, not one compound
weedkiller
vsweed killer
1 3.5

A chemical that kills unwanted plants like weeds

is identical in meaning but written as two separate words
dicamba
vsweed killer
  • Specialized
1 8.6

A man-made weed killer used on farms and in gardens to kill broadleaf weeds

covers all unwanted plant types and uses, not only broadleaf control
picloram
vsweed killer
  • Specialized
9.9

A chemical used to kill weeds and small trees in farming and forests

is the general term, not specialized to woody plants or forestry use

Antonyms

4 3.8

Helping plants, animals, or people's skills to grow and develop

1.0

Good for plants to grow

Surface Forms

weed killer singular
weed killers plural

Morphology

weed + killer

The meaning of 'weed killer' is transparently compositional: it denotes a thing that kills weeds, directly derived from 'weed' (unwanted plant) + 'killer' (one/thing that kills). This is a regular agentive compound pattern in English (and parallels exist in many languages), so a B1 learner who knows both constituents will readily infer the intended meaning.

Etymology

The noun weed killer gives a simple image: a product that kills weeds. Weed means an unwanted plant and killer shows it 'destroys' them, so the name means 'a chemical used to destroy unwanted plants'.