释义 |
cockatoo
cock·a·too C0444200 (kŏk′ə-to͞o′)n. pl. cock·a·toos Any of various parrots of the family Cacatuidae of Australia and adjacent areas, characterized by a long erectile crest. [Dutch kaketoe, from Malay kakatua.]cockatoo (ˌkɒkəˈtuː; ˈkɒkəˌtuː) n, pl -toos1. (Animals) any of various parrots of the genus Kakatoe and related genera, such as K. galerita (sulphur-crested cockatoo), of Australia and New Guinea. They have an erectile crest and most of them are light-coloured2. (Agriculture) Austral and NZ a small farmer or settler3. informal Austral a lookout during some illegal activity[C17: from Dutch kaketoe, from Malay kakatua]cock•a•too (ˈkɒk əˌtu, ˌkɒk əˈtu) n., pl. -toos. any of several large, usu. white crested parrots of the genus Cacatua and allied genera, of Australia, New Guinea, and adjacent islands. [1610–20; < Dutch kaketoe < Malay kakatua] ThesaurusNoun | 1. | cockatoo - white or light-colored crested parrot of the Australian region; often kept as cage birdsparrot - usually brightly colored zygodactyl tropical birds with short hooked beaks and the ability to mimic soundsCacatua, genus Cacatua, genus Kakatoe, Kakatoe - a genus of PsittacidaeCacatua galerita, Kakatoe galerita, sulphur-crested cockatoo - white cockatoo with a yellow erectile crestKakatoe leadbeateri, pink cockatoo - white Australian cockatoo with roseate tinged plumage | Translationscockatoo (kokəˈtuː) – plural cockaˈtoos – noun a parrot with a large crest. 鳳頭鸚鵡 美冠鹦鹉cockatoo
cockatoo: see parrotparrot, common name for members of the order Psittaciformes, comprising nearly 400 species of colorful birds, pantropical in distribution, including the parakeets. Parrots have large heads and short necks, strong feet with two toes in front and two in back (facilitating climbing ..... Click the link for more information. .Cockatoo a bird of the subfamily Kakatoeinae of the family Psittacidae. The body measures 60– cm long. A characteristic feature is the crest on the head. Cockatoos are found from the islands of Kalimantan and Flores, the Philippines, and New Guinea to the Solomon Islands, Australia, and Tasmania. There are five genera: Probosciger, Calyptorhynchus, Callocephalon, Kakatoe, and Nymphicus. These genera comprise 17 species. The birds live in forests, often near fields, and stay in flocks. They eat fruits and seeds, and their powerful beaks are capable of cracking even the very hard fruits of palm trees. In some places cockatoos seriously damage crops. They build their nest in tree hollows or in fissures of cliffs. The large cockatoos lay two or three white Table 1. Composition of coal tar |
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Fraction | Output (% of tar bulk) | Boiling point (°C) | Density at 20°C (kg per cu m) | Recoverable substances |
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Light………… | 0.2–0.8 | To 170 | 900–960 | Benzene and its homologues | Phenol………… | 1.7–2.0 | 170–210 | 1,000–1,010, 010 | Phenols, pyridine bases | Naphthalene…… | 8.0–10.0 | 210–230 | 1,010–,1,020 | Naphthalence, thionapthene | Heavy (absorbring)…. | 8.0–10.0 | 230–270 | 1,050–1,070 | Methyl naphthalenes, acenaphthene | Anthracene…… | 20.0–25.0 | 270–360(and to 400) | 1,080–1,130 | Anthracene, phenanthrene, carbazole, others | Pitch……… | 50.0–65.0 | Over 360 | 1,200–1,300 | Pyrene and other highly condensed aromatic compounds |
eggs; the small birds of the genus Nymphicus lay five or six eggs.Cockatoos are often kept in cages. cockatoo any of various parrots of the genus Kakatoe and related genera, such as K. galerita (sulphur-crested cockatoo), of Australia and New Guinea. They have an erectile crest and most of them are light-coloured MedicalSeeParrotcockatooenUS Related to cockatoo: Umbrella CockatooWords related to cockatoonoun white or light-colored crested parrot of the Australian regionRelated Words- parrot
- Cacatua
- genus Cacatua
- genus Kakatoe
- Kakatoe
- Cacatua galerita
- Kakatoe galerita
- sulphur-crested cockatoo
- Kakatoe leadbeateri
- pink cockatoo
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