| ลองค้นหาคำในรูปแบบอื่น ๆ เพื่อให้ได้ผลลัพธ์มากขึ้นหรือน้อยลง: -thall-, *thall* |
มีผลลัพธ์ที่ไม่แสดงผลอยู่ | thallium | (n) ธาตุโลหะสีขาว สัญลักษณ์ทางเคมีคือ TI |
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| | | ตะไคร่น้ำ | (n) moss, See also: thallophytic plant, lichen, algae, Syn. ตะไคร่, Example: ต้นไม้มีตะไคร่น้ำสีเขียวเกาะเป็นคราบ, Thai Definition: พืชสีเขียว ที่เกิดติดอยู่ตามต้นไม้ บางทีก็เกิดในน้ำและตามพื้นดินหรือกำแพงที่ชุ่มชื้น | | แทลเลียม | (n) thallium, Example: แทลเลียม-201 ใช้มากในการตรวจกล้ามเนื้อหัวใจ, Thai Definition: ธาตุโลหะที่เป็นของแข็งสีขาว, Notes: (อังกฤษ) |
| | แทลเลียม | [thaēnlīem = thaēllīem] (n) EN: thallium FR: thallium [ m ] |
| | | thallium | (n) a soft grey malleable metallic element that resembles tin but discolors on exposure to air; it is highly toxic and is used in rodent and insect poisons; occurs in zinc blende and some iron ores, Syn. atomic number 81, Tl | | thalloid | (adj) of or relating to or resembling or consisting of a thallus | | thallophyta | (n) used only in former classifications: comprising what is now considered a heterogeneous assemblage of flowerless and seedless organisms: algae; bacteria; fungi; lichens | | thallophyte | (n) any of a group of cryptogamic organisms consisting principally of a thallus and thus showing no differentiation into stem and root and leaf | | thallophytic | (adj) pertaining to or characteristic of thallophytes | | thallus | (n) a plant body without true stems or roots or leaves or vascular system; characteristic of the thallophytes |
| | Thallate | n. (Chem.) A salt of a hypothetical thallic acid. [ 1913 Webster ] | | Thallene | n. (Chem.) A hydrocarbon obtained from coal-tar residues, and remarkable for its intense yellowish green fluorescence. [ 1913 Webster ] | | Thallic | a. (Chem.) Of or pertaining to thallium; derived from, or containing, thallium; specifically, designating those compounds in which the element has a higher valence as contrasted with the thallous compounds; as, thallic oxide. [ 1913 Webster ] | | Thalline | a. (Bot.) Consisting of a thallus. [ 1913 Webster ] | | Thalline | n. [ Gr. &unr_; a young shoot or branch. ] (Chem.) An artificial alkaloid of the quinoline series, obtained as a white crystalline substance, C10H13NO, whose salts are valuable as antipyretics; -- so called from the green color produced in its solution by certain oxidizing agents. [ 1913 Webster ] | | Thallious | a. (Chem.) See Thallous. [ 1913 Webster ] | | Thallium | n. [ NL., fr. Gr. &unr_; young or green shoot or branch, twig. So called from a characteristic bright green line in its spectrum. ] (Chem.) A rare metallic element of the aluminium group found in some minerals, as certain pyrites, and also in the lead-chamber deposit in the manufacture of sulphuric acid. It is isolated as a heavy, soft, bluish white metal, easily oxidized in moist air, but preserved by keeping under water. Symbol Tl. Atomic weight 203.7. [ 1913 Webster ] | | Thallogen | n. [ Gr. &unr_; young shoot or branch, frond + -gen. ] (Bot.) One of a large class or division of the vegetable kingdom, which includes those flowerless plants, such as fungi, algae, and lichens, that consist of a thallus only, composed of cellular tissue, or of a congeries of cells, or even of separate cells, and never show a distinction into root, stem, and leaf. [ 1913 Webster ] | | Thalloid | a. [ Thallus + -oid. ] (Bot.) Resembling, or consisting of, thallus. [ 1913 Webster ] | | Thallophyta | ‖n. pl. [ NL. See Thallophyte. ] (Bot.) A phylum of plants of very diverse habit and structure, including the algae, fungi, and lichens. The simpler forms, as many blue-green algae, yeasts, etc., are unicellular and reproduce vegetatively or by means of asexual spores; in the higher forms the plant body is a thallus, which may be filamentous or may consist of plates of cells; it is commonly undifferentiated into stem, leaves, and roots, and shows no distinct tissue systems; the fronds of many algae, however, are modified to serve many of the functions of the above-named organs. Both asexual and sexual reproduction, often of a complex type, occur in these forms. The Thallophyta exist almost exclusively as gametophytes, the sporophyte being absent or rudimentary. By those who do not separate the Myxophyta from the Tallophyta as a distinct phylum the latter is treated as the lowermost group in the vegetable kingdom. [ Webster 1913 Suppl. ] |
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