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pinnate
[ pin-eyt, -it ]
adjective
, Biology.
- (of a leaf ) having leaflets or primary divisions arranged on each side of a common stalk:
the pinnate leaves of a palm tree.
- resembling a feather, as in construction or arrangement; having parts arranged on each side of a common axis:
This type of sea cucumber has a mouth surrounded by up to 25 pinnate tentacles.
pinnate
/ ˈpɪneɪt; ˈpɪnɪt /
adjective
- like a feather in appearance
- (of compound leaves) having the leaflets growing opposite each other in pairs on either side of the stem
pinnate
/ pĭn′āt′ /
- Having parts or divisions arranged on each side of a common axis in the manner of a feather. Ash, hickory, and walnut trees have pinnate leaves.
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Derived Forms
- ˈpinnately, adverb
- pinˈnation, noun
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Other Words From
- pinnate·ly pinnat·ed·ly adverb
- multi·pinnate adjective
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Word History and Origins
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Word History and Origins
Origin of pinnate1
C18: from Latin pinnātus, from pinna feather
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Example Sentences
These branches were clad with the delicate pinnate leaves that characterise the family of the mimosas.
From Project Gutenberg
The fern has large pinnate fronds, and is thus related to the mountain ash and the mimosæ.
From Project Gutenberg
These are sometimes once, and on other occasions, twice pinnate.
From Project Gutenberg
The frond is bi-pinnate, and the pinnæ are long and taper to a fine point.
From Project Gutenberg
The origin is by two distinct heads, each of which is pinnate.
From Project Gutenberg
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