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cystid

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cystid
cystid (ˈsɪstɪd) [f. mod.L. cystis cyst + -id.] 1. Geol. A member of the order Cystidea or Cystoidea of fossil echinoderms; a cystidean.1862 Dana Man. Geol. 162 The Cystids are the most anomalous of Radiates. 1877 Le Conte Elem. Geol. (1879) 299 Stemmed Echinoderms or Crinoids, may be divided into t... Oxford English Dictionary
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Statoblast
mature, some types stick to the parent colony, some fall to the bottom, some contain air spaces that enable them to float, and some remain in the parent's cystid wikipedia.org
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cystidean
cystidean Geol. (sɪˈstɪdiːən) [f. mod.L. cystidea, f. cystis: see cyst and -id.] = cystid 1.1862 Dana Man. Geol. 398 Cystideans..became extinct in the beginning of the Devonian. 1876 Page Adv. Text-Bk. Geol. xii. 207 So may a cystidean..be considered a sea-urchin attached to the bottom by a similar ... Oxford English Dictionary
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Bryozoa
Each zooid consists of a "cystid", which provides the body wall and produces the exoskeleton, and a "polypide", which holds the organs. The cystid consists of the body wall and whatever type of exoskeleton is secreted by the epidermis. wikipedia.org
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cystoid
cystoid, a. and n. (ˈsɪstɔɪd) [mod. f. Gr. κύστις bladder cyst + -oid: in mod.F. cystoïde.] A. adj. 1. Path. Of the nature of a cyst.1871 Holmes Syst. Surg. (ed. 2) V. 256 Cystoid formations. 1874 Jones & Siev. Pathol. Anat. 155 Cystoid Tumours. 2. Geol. Belonging to the order Cystoidea of fossil ec... Oxford English Dictionary
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ecto-
ecto- (ˈɛktəʊ) repr. Gr. ἐκτο, -stem of ἐκτός adv., outside; employed as comb. form in many compounds of mod. formation, as ˈecto-blast [Gr. βλαστός sprout], see quot.; ectoˈblastic a., of or belonging to an ectoblast; ˌecto-calˈcaneal a., see quot. and calcaneal; ectoˈchondral a. Anat., situated or... Oxford English Dictionary
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26.3 苔藓动物的形态、结构和功能 - 生物学百科 - 59Baike
Mar 1, 2022E.覆瓦鲍克苔虫;F.多室草苔虫;G.膜孔苔虫;H.牡丹蔽孔苔虫 2.个虫 (zooid)或个体 (个员) (person)：是苔藓动物的结构单元。 早先，曾 把苔虫误由两种生物逐渐组合而成，即外骨骼居室的囊状体 (cystid)和软体的 多足体 (polypide)。 实际上，这是苔虫本身的两个具特定功能的结构。 囊状体 系虫体的外壳和体壁部分又名虫室 (zoecium)，而多足体则包括可缩入虫室的 触手冠和内脏。 触手冠由囊状体外伸的开孔称为口孔 (orifice)，口孔为一扁平 的覆盖物闭合，此为厣 (operculum)。 群体苔虫个虫间相互联系以共享营养 (图26-2 A)。 在被唇类，个虫间的后 体腔相通。 在狭唇类，相邻个虫体壁具孔，体腔液沟通。
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Phylactolaemata
mature, some types stick to the parent colony, some fall to the bottom, some contain air spaces that enable them to float, and some remain in the parent's cystid wikipedia.org
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