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单词 pectinate
释义

pectinaten.

Brit. /ˈpɛktᵻneɪt/, /ˈpɛktᵻnət/, U.S. /ˈpɛktəˌneɪt/, /ˈpɛktənət/
Origin: Formed within English, by derivation. Etymons: pectinic adj., -ate suffix1.
Etymology: < pectin- (in pectinic adj.) + -ate suffix1.
Chemistry and Biochemistry.
A salt or ester of a pectinic acid.
ΚΠ
1938 Jrnl. Physical Chem. 42 308 In table 4..v is taken for the purpose of this calculation as 2 for sodium pectinate and as 3 for magnesium pectinate.
1952 Amer. Jrnl. Bot. 39 698/1 Mattson (1946) demonstrated a mechanism in grapefruit albedo involving pH, phytinates and pectinates which might operate as well with potassium as with sodium.
2003 Biomaterials 24 3337/2 A carefully controlled amount of calcium is necessary to provide optimal protection for drugs in calcium pectinate matrices.
This is a new entry (OED Third Edition, September 2005; most recently modified version published online March 2022).

pectinateadj.1

Origin: A borrowing from Latin. Etymon: Latin pectinātus.
Etymology: < classical Latin pectinātus combed, past participle of pectināre pectinate v.
Obsolete. rare.
Of hemp: dressed, combed.
ΘΚΠ
society > occupation and work > materials > raw material > plants, grasses, or reeds > [adjective] > made of hemp > type or quality of hemp
pectinate?a1425
braked1653
rippled1724
water rotted1771
retted1788
outshot1794
topped1794
?a1425 tr. Guy de Chauliac Grande Chirurgie (N.Y. Acad. Med.) f. 55 It is founden for to make hem of stupez canabinez, i. of hempe, namely, wele pectinate [L. pectinatis], i. heclede & clensed.
This is a new entry (OED Third Edition, September 2005; most recently modified version published online March 2020).

pectinateadj.2

Brit. /ˈpɛktɪnət/, U.S. /ˈpɛktəˌneɪt/, /ˈpɛktənət/
Origin: A borrowing from Latin. Etymon: Latin pectinātus.
Etymology: < classical Latin pectinātus resembling a comb < pectin- , pecten comb (see pecten n.) + -ātus -ate suffix2. Compare earlier pectinate adj.1, pectinate v. With sense 1a compare earlier pectinal adj.2, pectinated adj. With pectinate muscle (see sense 1b) compare scientific Latin musculus pectinatus (1797 (as musculus pectenatus) or earlier).
1.
a. Chiefly Botany and Zoology. Having narrow projections or divisions set closely in a row like the teeth of a comb.
ΘΚΠ
the world > life > biology > physical aspects or shapes > projection or protuberance > [adjective] > like teeth of a comb
pectinated1671
pectinate1757
1757 J. Hill Eden 196 (heading) Pectinate-leav'd Othonna.
1793 T. Martyn Lang. Bot. sig. N8v Pectinatum folium, a Pectinate leaf.
1833 Philos. Trans. (Royal Soc.) 123 806 It [sc. the operculum] has hitherto been observed only in those Mollusca which have pectinate branchiæ.
1846 J. D. Dana U.S. Exploring Exped.: Zoophytes 594 Margin of the pinnules pectinate.
1870 J. D. Hooker Student's Flora Brit. Islands 189 Bracts with..pectinate tip and margins.
1921 H. T. Fernald Appl. Entomol. xxix. 256 Family Lasiocampidæ... The moths are of only medium size, with..antennæ fringed on one side (pectinate).
1969 R. F. Chapman Insects xxxvi. 737 The antennae of many male Lepidoptera which are attracted by scent are strongly pectinate.
1995 C. Nielsen Animal Evol. xv. 112 A mantle cavity with pectinate gills.
b. Anatomy. Designating the parallel ridges of myocardium present on the inner surface of right atrium and both auricular appendages. Chiefly in pectinate muscle.
ΚΠ
1848 R. Dunglison Med. Lexicon (ed. 7) 634/2 Pectinated muscles, the fascicular texture observed in the right auricle of the heart:—Musculi Auriculæ Pectinati.]
1890 Cent. Dict. (at cited word) Pectinate muscles, the musculi pectinati of the heart.
1914 Philos. Trans. (Royal Soc.) B. 205 389 The tænia, taking a straight course to the inferior cava, forms a base from which the pectinate bands sweep slightly away around the body of the right auricle.
1952 C. D. O'Malley & J. B. de C. M. Saunders Leonardo da Vinci on Human Body 216 The heart muscle was divided into external and internal or extrinsic and intrinsic, the ventricular wall forming the first and the papillary and pectinate muscles, the second.
2002 Pacing & Cardiac Electrophysiol. 25 342 The right atrium contains prominent muscular bundles and an extensive array of pectinate muscles.
2. Biology. Designating or relating to a cladogram or tree diagram in which, at each branching point, one branch (usually depicted on the left hand side) represents a single taxon and is not further subdivided.
ΚΠ
1977 Systematic Zool. 26 350/1 In the equally unlikely case of a completely ‘pectinate’ tree, he could employ up to 144 taxon names and 48 categories.
1990 Proc. Royal Soc. B. 240 143 In general, a pectinate tree, i.e., a comb-like one with many branches that each involve few taxa, is likely to give better, or at least apparently less equivocal information, than one where there are few branches each with many species.

Compounds

pectinate ligament n. [after scientific Latin ligamentum pectinatum (iridis) (1867 or earlier)] Anatomy (more fully pectinate ligament of the iris) a mesh of fibres occupying the angle between the iris and the cornea.
ΚΠ
1890 Cent. Dict. (at cited word) Pectinate ligament of the iris.
1912 Proc. Royal Soc. B. 85 456 Arthur Thomson has brought forward anatomical evidence for the view that the ciliary muscle opens the channels in the pectinate ligament.
1996 Jrnl. Vet. Med. Sci. 58 977 In the dog and the cat, the pectinate ligament consisted of slender strands that were separated by large intertrabecular spaces.
pectinate line n. Anatomy the serrated line between the mucosal surfaces of the rectum and anus, at the level of the anal valves (cf. pecten n. 1c).
ΚΠ
1929 F. C. Yeomans Proctology i. 16 They [sc. the anal valves] thus form an irregular line known as the pectinate line.
1977 Jrnl. Pediatric Surg. 12 95 A urethroanal connection through which urine was passed preferentially into the otherwise normal rectum at the pectinate line.
2001 Amer. Family Physician (Nexis) 63 2391 The dentate or pectinate line divides the squamous epithelium from the mucosal or columnar epithelium.
pectinate muscle n. see sense 1b.
This entry has been updated (OED Third Edition, September 2005; most recently modified version published online March 2022).

pectinatev.

Origin: A borrowing from Latin. Etymons: Latin pectināt-, pectināre.
Etymology: < classical Latin pectināt-, past participial stem (compare -ate suffix3) of pectināre to comb < pectin- , pecten comb (see pecten n.). Compare earlier pectinate adj.1 N.E.D. (1904) gives the pronunciation as (pe·ktineit) /ˈpɛktɪneɪt/.
Obsolete. rare.
1. transitive. To comb (see also quot. 1656). rare.Apparently only attested in dictionaries or glossaries.
ΘΚΠ
the mind > attention and judgement > beautification > beautification of the person > beautification of the hair > beautify (the hair) [verb (transitive)] > comb
kembc1000
comb1398
pectinate1623
rede1718
to comb out1854
redd1864
back-comb1865
fine-tooth comb1889
rat1904
hackle1929
tease1957
sleek1959
1623 H. Cockeram Eng. Dict. Pectinate, to comb.
1656 T. Blount Glossographia Pectinate, to kemb, to harrow corn, while it is in grass, to rake corn together.
2. transitive and intransitive. To fit together alternately, like the teeth of two combs; to interlock.
ΘΚΠ
the world > space > relative position > fact or condition of being transverse > intersection > intersect [verb (transitive)] > interlock or interdigitate
lock?a1425
pectinate1646
pitcha1668
interlock1808
interdigitate1864
the world > space > relative position > fact or condition of being transverse > intersection > intersect [verb (intransitive)] > interlock or interdigitate
interlock1632
lock1643
indigitate1835
interdigitate1849
mesh1882
pectinate1884
intermesh1909
1646 Sir T. Browne Pseudodoxia Epidemica v. xxii. 266 To sit crosse legg'd, or with our fingers pectinated or shut together is accounted bad.
1884 F. O. Bower & D. H. Scott tr. H. A. de Bary Compar. Anat. Phanerogams & Ferns 234 The bundles..are separated from one another by other bundles, which pass between them, and pectinate with them.
This entry has been updated (OED Third Edition, September 2005; most recently modified version published online June 2021).
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n.1938adj.1?a1425adj.21757v.1623
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