deltaic

[del-tey-ik]
adjective
1.
pertaining to or like a delta.
2.
forming or having a delta.

Origin:
delta + -ic

subdeltaic, adjective
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World English Dictionary
delta (ˈdɛltə)
 
n
1.  the fourth letter in the Greek alphabet (Δ, δ), a consonant transliterated as d
2.  an object resembling a capital delta in shape
3.  (capital when part of name) the flat alluvial area at the mouth of some rivers where the mainstream splits up into several distributaries: the Mississippi Delta
4.  maths a finite increment in a variable
 
[C16: via Latin from Greek, of Semitic origin; compare Hebrew dāleth]
 
deltaic
 
adj
 
'deltic
 
adj

Collins English Dictionary - Complete & Unabridged 10th Edition
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Example sentences
It was less a determined, swift river than a lacework of deltaic streams working their way along twisted channels.
Rocks in the northern areas of the basin include shelf carbonates, shales, and deltaic sandstones.
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