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lepido-|ˈlɛpɪdəʊ| repr. Gr. λεπιδο-, combining form of λεπίς scale, used in certain scientific terms (the more important are given as main words): ˈlepidochlore |-klɔə(r)| Min. [Gr. χλωρός green], an impure chlorite containing mica. ˌlepidocrocite |-ˈkrəʊsaɪt| Min. [Gr. κροκίς fibre], a red to reddish-brown hydroxide of iron, FeO(OH), which is found as scaly or fibrous orthorhombic dipyramidal crystals, often in association with goethite, HFeO2 (with which it was formerly identified). ˌlepidoˈdendroid |-ˈdɛndrɔɪd| a., pertaining to or resembling plants of the genus Lepidodendron; n., a plant of this genus or of the group of which it is the type; also ˌlepidoˈdendrid n. ‖ ˌlepidoˈdendron |-ˈdɛndrɒn| [Gr. δένδρον tree], a genus of fossil plants common in coal-measures, characterized by the presence on the trunk of leaf-scars; a plant of this genus; also attrib. ˌlepidoˈganoid |-ˈgænɔɪd| a. Ichthyol. [see ganoid], pertaining to the Lepidoganoidei, a group of ganoid fishes having regular scales instead of plates; n., a fish of this group. ˌlepidogaˈnoidean a., = prec. adj. ˌlepidomelane |-mɛˈleɪn| Min. [Gr. µέλας, µέλαν-ος black], a highly ferruginous mica, usually found in aggregations of small black scales. ˌlepidoˈmorphite |-ˈmɔːfaɪt| Min. [Gr. µορϕή form], a fine scaly mica, the result of the alteration of oligoclase (Chester Dict. Min. 1896). ˌlepidoˈphæite |-ˈfiːaɪt| Min. [Gr. ϕαιός dun], a fibrous and scaly variety of lampadite (Cassell 1884). ˌlepidoˈsaurian |-ˈsɔːrɪən| [see saurian] a., pertaining to the sub-class Lepidosauria of Reptiles, characterized by a scaly integument; n., one of the Lepidosauria. ‖ ˌlepidoˈsiren Ichthyol. [see siren], a genus of dipnoan fishes; a fish of this genus. ˌlepiˈdosteid |-ˈdɒstiːɪd|, lepiˈdosteoid |-ˈdɒstiːɔɪd| a., pertaining to the family Lepidosteidæ of rhomboganoid fishes; n., a fish of this family. lepidoˈtrichium [Gk. θρίξ, τριχ- hair], (usu. in pl. lepidoˈtrichia) in most teleost fishes, the bony rays supporting the outer part of the fins.
1859C. V. Shepard Rep. Mt. Pisgah 6 (Chester) *Lepidochlore.
1823H. J. Brooke Crystallogr. 476 *Lepidokrokite. 1868Dana Min. (ed. 5) 170 Scaly-fibrous, or feathery columnar..the Lepidocrocite. 1919Amer. Jrnl. Sci. XLVII. 322 Optical studies of the reddish, scaly crystals called rubinglimmer and lepidocrocite, led Lacroix to propose that they be classed together as lepidocrocite and separated from goethite, with which they had formerly been identified. 1944C. Palache et al. Dana's Syst. Min. (ed. 7) I. 644 The name goethite properly belongs to the species here described, since the name was originally given by Lenz to the material from Eiserfeld now known to be lepidocrocite. Goethite, however, is in general use to designate the compound HFeO2. 1951Amer. Mineralogist XXXVI. 31 Lepidocrocite has the hydrogen atom in a discrete OH group... Hence the decomposition of lepidocrocite occurs at a lower temperature than goethite. 1967New Scientist 13 July 92/3 Professor Lowenstam has discovered that some chitons have a second iron mineral in their teeth—lepidocrocite. 1971R. J. Gettens Two Early Chinese Bronze Weapons iv. 23 The iron blade which served as the cutting edge has been drastically altered by corrosion... X-ray powder diffraction analysis of samples of rust showed that it consists of two hydrated iron oxides, goethite..and lepidocrocite.
1863Dana Geol. 395 The large *Lepidodendrids of the Coal era. 1877Le Conte Elem. Geol. (1879) 316 Gigantic Lepidodendrids and Sigillarids.
1876Page Adv. Text-bk. Geol. xiii. 223 Year after year these *lepidodendroid stems are becoming better known. 1872Nicholson Palæont. xliii. 475 The Lepidodendroids and Sigillaroids have now [in the Trias] completely disappeared. 1875W. C. Williamson in Bennett & Dyer Sachs' Bot. 421 The Lepidodendroid plants.
1836Buckland Geol. & Min. Consid. I. 468 The internal structure of the *Lepidodendron. 1867H. Macmillan Bible Teach. iv. (1870) 82 Lepidodendrons and Sigillarias were intermediate between pines and club-mosses, though approaching more nearly the former.
1861Henry Gloss. Sci. Terms, *Lepidoganoid, a sub-order of fossil fishes.
1863Dana Geol. 279 Scale⁓covered Ganoids, or *Lepidoganoids.
1844― Min. (ed. 2) 322 *Lepidomelane..was named in allusion to its structure and color. 1879Rutley Stud. Rocks x. 136 Lepidomelane occurs in small disc-sided tabular crystals, or in aggregations of minute scales.
1854Owen Skel. & Teeth in Circ. Sci., Organ. Nat. I. 172 The *lepidosiren, and many fossil fishes. 1848Carpenter Anim. Phys. ii. (1872) 99 The Lepidosiren or mud fish.
1904E. S. Goodrich in Q. Jrnl. Microsc. Sci. XLVII. 472 In the majority of Teleostean fish the median and paired fins are covered with a smooth scaleless skin, below which lie the dermal fin-rays. For reasons which will appear later, I propose to call these rays the *lepidotrichia. 1963P. H. Greenwood Norman's Hist. Fishes (ed. 2) iii. 29 The outer part of the fin [of sturgeons] is supported not by horny rays but by bony fin rays, actually modified scales, called lepidotrichia. |