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单词 sessile
释义

sessile

adjective

ses·​sile ˈse-ˌsī(-ə)l How to pronounce sessile (audio)
-səl
1
: attached directly by the base : not raised upon a stalk or peduncle
a sessile leaf
sessile bubbles
2
: permanently attached or established : not free to move about
sessile sponges and coral polyps

Example Sentences

Recent Examples on the Web This discovery of the cassiosomes takes us one step closer to understanding how these sessile creatures manage to capture prey. Cheryl Ames, National Geographic, 13 Feb. 2020 To assemble the data set, research teams looked at about 20 trees from each of the dozen tree species, which included maritime pine, Norway spruce, sessile oak, stone pine, and European beech. Elizabeth Pennisi, Science | AAAS, 27 Jan. 2020 Jellyfish begin their lives much like their cousins, as sessile polyps anchored to the seafloor, scrounging for food in the passing currents. Quanta Magazine, 8 Jan. 2019 Well, the sessile oak sapling—from Belleau, the French site of a World War I battle—is no longer on the White House lawn. David Meyer, Fortune, 30 Apr. 2018 Another factor, Monterro-Serra notes, is that these sessile species are clonal. National Geographic, 31 Mar. 2018

Word History

Etymology

Latin sessilis of or fit for sitting, low, dwarf (of plants), from sessus, past participle of sedēre

First Known Use

circa 1753, in the meaning defined at sense 1

Medical Definition

sessile

adjective

ses·​sile ˈses-īl How to pronounce sessile (audio) -əl How to pronounce sessile (audio)
1
: attached directly by a broad base : not pedunculated
a sessile tumor
2
: firmly attached (as to a cell) : not free to move about
sessile antibodies
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更新时间:2024/12/25 13:26:32