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[2x]

: U- U. U3 Ua Ub Uc Ud Uf Ug Uh Ui Uk Ul Um Un Up Ur Us Ut Uu Uv Uw Ux Uy Uz

Table of Contents POS
HYPHEN
COUNT IN NET
WORDNET DICTIONARY
CIDE DICTIONARY
OXFORD DICTIONARY

upstream

Adjective, Adverb

up=stream

1 in 1 verses (in OT : 1 in 1 verses)

WORDNET DICTIONARY

upstream(a = adj.all) Array - in the direction against a stream's current; Array

upstream(r = adv.all) upriver - toward the source or against the current; Array

Antonym: downstream

upstream, adv.

Toward the higher part of a stream; against the current. [1913 Webster]

upstream, adv. & adj.
--adv. against the flow of a stream etc.
--adj. moving upstream.

For further exploring for "upstream" in Webster Dictionary Online