wa·ter·course 
(wôtər-kôrs′, wŏtər-)
(wôtər-kôrs′, wŏtər-)n.
1. A natural or artificial channel through which water flows.
2. A stream or river.
- definement
- definer
- definiendum
- definiens
- definite
- definite article
- definite integral
- definitely
- definiteness
- definition
- definitional
- definitive
- definitive host
- definitively
- definitiveness
- definitization
- definitize
- definitude
- deflagrate
- deflagration
- deflate
- deflation
- deflationary
- deflationist
- deflator