Orinoco

UK: /ˌɒrɪˈnəʊkəʊ/ US: (ôr′ə nō′kō, ōr′-; Sp. ô′rē nô′kô)

WordReference Random House Unabridged Dictionary of American English © 2026

O•ri•no•co  (ôr′ə nō′kō, ōr′-; Sp. ô′rē nô′kô), n. 

1. Place Names a river in N South America, flowing N from the border of Brazil, along the E border of Colombia, and NE through Venezuela to the Atlantic. 1600 mi. (2575 km) long.

Collins Concise English Dictionary © HarperCollins Publishers::

Orinoco / ˌɒrɪˈnəʊkəʊ/ noun

1. a river in N South America, rising in S Venezuela and flowing west, then north as part of the border between Colombia and Venezuela, then east to the Atlantic by a great delta: the third largest river system in South America, draining an area of 945 000 sq km (365 000 sq miles); reaches a width of 22 km (14 miles) during the rainy season. Length: about 2575 km (1600 miles)