Dictionary.com
Thesaurus.com

guttering

American  
[guht-er-ing] / ˈgʌt ər ɪŋ /

noun

  1. the act of making gutters.

  2. material for making gutters.

  3. the gutters of an individual building.

  4. the melted wax or tallow of a candle.


ˈguttering British  
/ ˈɡʌtərɪŋ /

noun

  1. the gutters, downpipes, etc, that make up the rainwater disposal system on the outside of a building

  2. the materials used in this system

"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 guttering

1400–50; late Middle English. See gutter, -ing 1