| 释义 |
psammo-|psæməʊ, sæməʊ|
before a vowel psamm-, repr. Gr. ψαµµο-, combining form of ψάµµος sand, entering into some scientific terms. psammobiid |-ˈməʊbɪɪd| Zool., a bivalve mollusc of the family Psammobiidæ, typified by the genus Psammobia [Gr. βίος life]; so psaˈmmobioid a. ‖ ˌpsammocarciˈnoma Path. (pl. -ata), a carcinoma containing concretions resembling sand (Billings Nat. Med. Dict. 1890). psammodontid |-məʊˈdɒntɪd| Ichth., a fish belonging to the extinct Psammodontidæ, a family of rays with flat quadrate teeth, typified by the genus Psammodus [Gr. ὀδούς, ὀδοντ- tooth]. psammolithic |-ˈlɪθɪk| a. Geol. [Gr. λίθος stone], consisting of sandstone: used of groups of strata. ˈpsammophile n. and a. Bot. [a. F. psammophile (J. Thurmann Essai de Phytostatique (1849) I. xiii. 268): see -phil, -phile], (a plant) thriving best in sandy soil. psammoˈphilic a. = psammophilous adj.; psammophilous |-ˈɒfɪləs| a. Bot. [Gr. ϕίλος loving], sand-loving, frequenting or growing in sandy soil, as an insect or a plant. ‖ ˈpsammophis [Gr. ὄϕις snake, serpent], name of a genus of snakes, a sand-snake or desert-snake; hence ˈpsammophid, ˈpsammophine adjs., of or belonging to the family Psammophidæ, and subfamily Psammophinæ, typified by Psammophis. ˈpsammophyte, a plant characteristic of sandy habitats. ‖ ˌpsammosarˈcoma Path. (pl. -ata), a sarcoma or fleshy tumour with sand-like calcareous particles. ˈpsammosere Ecol. [sere n.2], a plant succession having its origin on sand.
1888F. A. Lees Flora W. Yorkshire 69 Others [sc. plants]..are quite as much *psammophiles, if their stations be any guide. 1901C. Mohr Plant Life Alabama 131 The slender, wiry culms of this grass..render the species one of the most striking types of psammophile plants.
1973M. A. Sleigh Biol. Protozoa xi. 264 These *psammophilic forms [of Protozoa] have been studied by J. Dragesco.
1869Trimen & Dyer Flora Middlesex 361 In the list of *psammophilous species..the majority do not show a decided bias for any soil. 1888F. A. Lees Flora W. Yorkshire 78 (heading) Arenaceous soils and psammophilous species. 1909E. Warming Oecol. Plants lxviii. 263 The fourth formation, composed of large dune-grasses, is much more psammophilous than halophilous. 1961R. D. Manwell Introd. Protozool. xv. 305 Some species [of Sarcodina] appear to be restricted to beach sands... Such species are said to be ‘psammophilous’.
1903W. R. Fisher tr. Schimper's Plant-Geogr. ii. i. 80 The formations of the sandy sea-shore and of dunes serve as excellent examples of the vegetation of *psammophytes. 1909E. Warming Oecol. Plants lxix. 264 Triticum junceum..is one of the halophilous psammophytes that begin the production of dune. 1973F. di Castri in di Castri & Mooney Mediterranean Type Ecosystems ii. 22 The psammophyte Ambrosia chamissonis was remarkably similar in the coastal fringe of Chile and western North America.
1901Lancet 26 Jan. 251/1 A *psammosarcoma as large as an orange had grown from the falx cerebri, compressing both prefrontal lobes.
1916*Psammosere [see lithosere s.v. litho-]. 1929Weaver & Clements Plant Ecol. iv. 74 The differences of hardness and stability result in very dissimilar seres. These are distinguished as (rock) lithoseres and (sand) psammoseres, respectively. 1964V. J. Chapman Coastal Vegetation vi. 150 The dune succession..is quite clearly a prisere, and since it develops on sand it is often known as a Psammosere. |
