preemergence
adjective Date: 1935 used or occurring before emergence of seedlings above the ground <
preemergence herbicides
>

New Collegiate Dictionary. 2001.

Look at other dictionaries:

  • preemergence — |prē+ adjective Etymology: pre + emergence : used or occurring before emergence of seedlings aboveground dramatic success has been achieved with preemergence herbicides Chem. & Engineering News no preemergence injury occurred in the field… …   Useful english dictionary

  • preemergence — /pree i merr jeuhns/, adj. occurring or applied before the emergence of a plant from the soil: preemergence herbicide. Also, pre emergence. [1930 35; PRE + EMERGENCE] * * * …   Universalium

  • preemergence — pre·emergence …   English syllables

  • préémergence —  n.f. Stade proche de l émergence …   Le dictionnaire des mots absents des autres dictionnaires

  • preemergent — ˌ adjective Etymology: pre + emergent : preemergence * * * /pree i merr jeuhnt/, adj. Hort. 1. of or pertaining to seedlings before they emerge or appear above ground: a preemergent weed killer. n. 2. a preemergence chemical, as a herbicide. Also …   Useful english dictionary

  • pre-e|mer|gent — pre|e|mer|gent or pre e|mer|gent «PREE ih MUR juhnt», adjective. = preemergence. (Cf. ↑preemergence) …   Useful english dictionary

  • pre|e|mer|gent — or pre e|mer|gent «PREE ih MUR juhnt», adjective. = preemergence. (Cf. ↑preemergence) …   Useful english dictionary

  • preemergent — adjective Date: 1959 preemergence …   New Collegiate Dictionary

  • Biotechnology — is technology based on biology, especially when used in agriculture, food science, and medicine. The United Nations Convention on Biological Diversity defines biotechnology as: [ [http://www.biodiv.org/convention/convention.shtml The Convention… …   Wikipedia

  • Herbicide — Weeds killed with herbicide Herbicides, also commonly known as weedkillers, are pesticides used to kill unwanted plants.[1] Selective herbicides kill specific targets while leaving the desired crop relatively unharmed. Some of these act by… …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”