Definitions
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- adjective That is not washed off by the
rain
Etymologies
Sorry, no etymologies found.
Support

Help support Wordnik (and make this page ad-free) by adopting the word rainfast.
Examples
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Like Zapp, Zapp Encore offers long term control with dual action against lice and flystrike; a rainfast formula with fast spreading solvent base for rapid penetration into the fleece and low mammalian toxicity.
NZ On Screen 2010
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Like Zapp, Zapp Encore offers long term control with dual action against lice and flystrike; a rainfast formula with fast spreading solvent base for rapid penetration into the fleece and low mammalian toxicity.
NZ On Screen 2010
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Plantskydd, a dried blood product from Sweden, is mixed with a vegetable oil binder that is rainfast within a day.
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Many crops are now about ready for desiccation, but spraying is awkward with the catchy conditions, although certain formulations claim rainfast times quicker than others.
FWi - All News 2009
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Many crops are now about ready for desiccation, but spraying is awkward with the catchy conditions, although certain formulations claim rainfast times quicker than others.
FWi - All News 2008
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