polytrophicadj.

Brit.

/ˌpɒlɪˈtrɒfɪk/,

/ˌpɒlɪˈtrəʊfɪk/, U.S.

/ˌpɑliˈtrɑfɪk/,

/ˌpɑliˈtroʊfɪk/

Forms: 1600s polytrophick, 1900s– polytrophic.

Origin: Formed within English, by compounding. Etymons: poly- comb. form, -trophic comb. form.

Etymology: < poly- comb. form + -trophic comb. form. In sense 1 after Hellenistic Greek πολυτρόϕος supplying food, nutritious, highly nourished. In sense 2 after German polytroph (1897 in the passage translated in quot. 1900¹ at sense 2); compare also post-classical Latin polytrofus nutritious (c400). With sense 4 compare earlier mesotrophic adj., oligotrophic adj. 2.

†1. Highly nutritious. Obsolete. rare.

ΘΚΠ

the world > food and drink > food > qualities of food > [adjective] > nourishing

nourishing1340

marrowya1382

nutrimentala1398

feeding1398

marroweda1400

nourishanta1400

nurshing?c1425

nutritivec1450

nutrativec1487

nourishable1496

hearty?1550

battling1555

nurturable1579

alimental1586

nutrible1607

alimentary1608

nutrimentive1610

refective1611

battlesome1627

alible1653

nurturing?a1659

alimentous1659

alimonious1659

polytrophic1659

nutrient1661

nutritious1665

alimentarious1671

foodful1735

nutritionarya1852

nutritional1858

nutraceutical1990

1659 R. Lovell Παμβοτανολογια sig. *7 As for meat, it's such as is euchymick & polytrophick, or of good juice and of much nourishment.

2. Biology. Feeding on several kinds of food; obtaining nutrients in more than one way; spec. (of a parasitic organism) infesting many host species; (of a bee) visiting the flowers of many species (= polytropic adj. 3).

ΘΚΠ

the world > animals > invertebrates > phylum Arthropoda > class Insecta > order Hymenoptera > [adjective] > belonging to division Petiolata > belonging to division Anthophila > of or belonging to bees > collecting nectar of different kinds of flowers

polytropic1899

polytrophic1900

1900 A. C. Jones tr. A. Fischer Struct. & Functions Bacteria 49 I. Prototrophic Bacteria..occur only in the open in nature, never parasitic, always monotrophic. II. Metatrophic Bacteria,..(facultative parasites), monotrophic or polytrophic.

1900 Nature 13 Sept. 465/1 Sometimes parasitic (facultative parasites), monotrophic or polytrophic [bacteria].

1946 Jrnl. Animal Ecol. 15 10 The term monotrophic (or -tropic) is applied to species of bees which restrict their visits to one species of plant, oligotrophic to those which only visit the flowers of a few closely related species.., and polytrophic to those which visit a wide range of species.

1984 Amer. Jrnl. Bot. 71 892/1 Apis mellifera, an introduced species which is notably polytrophic in terms of its foraging behavior.

1998 Limnol. & Oceanogr. 43 1643/2 Corals have a polytrophic feeding strategy.

3. Entomology. Of an ovariole: having trophocytes or nurse cells enclosed in the follicle with the oocytes.

ΚΠ

1925 A. D. Imms Gen. Textbk. Entomol. 150 Three principal types of ovarioles are recognized... (a) The panoistic type... (b) The polytrophic type... (c) The acrotrophic type... Types (b) and (c) are often grouped as one type—meroistic.

1989 Proc. National Acad. Sci. U.S.A. 86 3749/1 Each ovary of D. melanogaster contains an average of 16 polytrophic ovarioles.

1998 R. F. Chapman Insects (ed. 4) xiii. 302/1 In polytrophic ovarioles, all the cytoplasmic contents are moved to the oocyte when the trophocytes collapse.

4. Ecology. Of a lake: rich in nutrients, or a particular category of nutrient.

ΚΠ

1931 Jrnl. Ecol. 19 247 [For waters] Naumann..has elaborated a concept of so-called environmental spectra (Milieuspektra), distinguishing for each factor (nutritive salts, detritus, dissolved gases..) three grades, the oligotrophic, mesotrophic and polytrophic grades.

1942 New Phytologist 41 171 The colourless saprophytic Euglenineae..are especially common in cultures inoculated with mud from the bottom of polytrophic waters.

1990 Jrnl. Ecol. 78 839 The concentrations of ash, nitrogen and phosphorus in roots, rhizomes and shoots were significantly higher in the polytrophic Forfar Loch than in the eutrophicated Balgavies Loch.

This entry has been updated (OED Third Edition, September 2006; most recently modified version published online March 2022).

单词	polytrophic
释义	polytrophicadj. Brit. /ˌpɒlɪˈtrɒfɪk/, /ˌpɒlɪˈtrəʊfɪk/, U.S. /ˌpɑliˈtrɑfɪk/, /ˌpɑliˈtroʊfɪk/ Forms: 1600s polytrophick, 1900s– polytrophic. Origin: Formed within English, by compounding. Etymons: poly- comb. form, -trophic comb. form. Etymology: < poly- comb. form + -trophic comb. form. In sense 1 after Hellenistic Greek πολυτρόϕος supplying food, nutritious, highly nourished. In sense 2 after German polytroph (1897 in the passage translated in quot. 1900¹ at sense 2); compare also post-classical Latin polytrofus nutritious (c400). With sense 4 compare earlier mesotrophic adj., oligotrophic adj. 2. †1. Highly nutritious. Obsolete. rare. ΘΚΠ the world > food and drink > food > qualities of food > [adjective] > nourishing nourishing1340 marrowya1382 nutrimentala1398 feeding1398 marroweda1400 nourishanta1400 nurshing?c1425 nutritivec1450 nutrativec1487 nourishable1496 hearty?1550 battling1555 nurturable1579 alimental1586 nutrible1607 alimentary1608 nutrimentive1610 refective1611 battlesome1627 alible1653 nurturing?a1659 alimentous1659 alimonious1659 polytrophic1659 nutrient1661 nutritious1665 alimentarious1671 foodful1735 nutritionarya1852 nutritional1858 nutraceutical1990 1659 R. Lovell Παμβοτανολογια sig. 7 As for meat, it's such as is euchymick & polytrophick, or of good juice and of much nourishment. 2. Biology. Feeding on several kinds of food; obtaining nutrients in more than one way; spec.* (of a parasitic organism) infesting many host species; (of a bee) visiting the flowers of many species (= polytropic adj. 3). ΘΚΠ the world > animals > invertebrates > phylum Arthropoda > class Insecta > order Hymenoptera > [adjective] > belonging to division Petiolata > belonging to division Anthophila > of or belonging to bees > collecting nectar of different kinds of flowers polytropic1899 polytrophic1900 1900 A. C. Jones tr. A. Fischer Struct. & Functions Bacteria 49 I. Prototrophic Bacteria..occur only in the open in nature, never parasitic, always monotrophic. II. Metatrophic Bacteria,..(facultative parasites), monotrophic or polytrophic. 1900 Nature 13 Sept. 465/1 Sometimes parasitic (facultative parasites), monotrophic or polytrophic [bacteria]. 1946 Jrnl. Animal Ecol. 15 10 The term monotrophic (or -tropic) is applied to species of bees which restrict their visits to one species of plant, oligotrophic to those which only visit the flowers of a few closely related species.., and polytrophic to those which visit a wide range of species. 1984 Amer. Jrnl. Bot. 71 892/1 Apis mellifera, an introduced species which is notably polytrophic in terms of its foraging behavior. 1998 Limnol. & Oceanogr. 43 1643/2 Corals have a polytrophic feeding strategy. 3. Entomology. Of an ovariole: having trophocytes or nurse cells enclosed in the follicle with the oocytes. ΚΠ 1925 A. D. Imms Gen. Textbk. Entomol. 150 Three principal types of ovarioles are recognized... (a) The panoistic type... (b) The polytrophic type... (c) The acrotrophic type... Types (b) and (c) are often grouped as one type—meroistic. 1989 Proc. National Acad. Sci. U.S.A. 86 3749/1 Each ovary of D. melanogaster contains an average of 16 polytrophic ovarioles. 1998 R. F. Chapman Insects (ed. 4) xiii. 302/1 In polytrophic ovarioles, all the cytoplasmic contents are moved to the oocyte when the trophocytes collapse. 4. Ecology. Of a lake: rich in nutrients, or a particular category of nutrient. ΚΠ 1931 Jrnl. Ecol. 19 247 [For waters] Naumann..has elaborated a concept of so-called environmental spectra (Milieuspektra), distinguishing for each factor (nutritive salts, detritus, dissolved gases..) three grades, the oligotrophic, mesotrophic and polytrophic grades. 1942 New Phytologist 41 171 The colourless saprophytic Euglenineae..are especially common in cultures inoculated with mud from the bottom of polytrophic waters. 1990 Jrnl. Ecol. 78 839 The concentrations of ash, nitrogen and phosphorus in roots, rhizomes and shoots were significantly higher in the polytrophic Forfar Loch than in the eutrophicated Balgavies Loch. This entry has been updated (OED Third Edition, September 2006; most recently modified version published online March 2022). < adj.1659
随便看	in midst of in midterm in milk in mimicry of in mind in mine in miniature in minority in minute in missing in mist in mistake for in mister in mitching wise in mitigation in mock of in mode in moderation in mone in mono in monochrome in monosyllable in monosyllables in monotint in monument of