| 单词 | leaf |
| 释义 | leaf (once / 50 pages) 1nv 2nv 3n A leaf is part of a plant that's usually green and attached to it by a stem or stalk. In the fall, the leaves of many trees turn various bright colors before falling to the ground. In the spring, trees grow new leaves. Ahhh, the circle of life. A plant's leaves are the organs that take part in photosynthesis, which brings it needed nutrients. From this botanical meaning comes another definition of leaf, "a sheet of printed paper or a page in a book." And when you leaf through a book, you turn its pages. You might also "tremble like a leaf," or shake with fear; or "turn over a new leaf," start a new part of your life with new resolutions or attitudes. WORD FAMILYleaf: interleaf, leaf-like, leafage, leafed, leafing, leafless, leaflet, leaflike, leafs, leafy, leaves, overleaf+/interleaf: interleaves/leafing: leafings/leafless: leaflessly/leaflet: leaflets/leafy: leafier, leafiest USAGE EXAMPLESShumlin wants to appoint a successor before he leaves office Thursday, but Republicans sued. Washington Times(Jan 03, 2017) Kaaya leaves Miami as the school’s career record-holder in yards, completions and attempts. Washington Times(Jan 02, 2017) Victory in a bitty game, 48 hours after their last, leaves them in sixth place, but playing here with a sense of strength in reserve. The Guardian(Jan 02, 2017) 1 1n the main organ of photosynthesis and transpiration in higher plants Syn|Hypo|Hyper foliage, leafage cataphyll a reduced or scarcely developed leaf at the start of a plant's life (i.e., cotyledons) or in the early stages of leaf development floral leafa modified leaf that is part of a flower dandelion greenthe foliage of the dandelion plant pitcher(botany) a leaf that that is modified in such a way as to resemble a pitcher or ewer sporophyl, sporophyllleaf in ferns and mosses that bears the sporangia blade, leaf bladeespecially a leaf of grass or the broad portion of a leaf as distinct from the petiole amplexicaul leafa leaf with its base clasping the stem greenery, verduregreen foliage leafletpart of a compound leaf frondcompound leaf of a fern or palm or cycad padthe large floating leaf of an aquatic plant (as the water lily) scale, scale leafa specialized leaf or bract that protects a bud or catkin fig leafa leaf from a fig tree simple leafa leaf that is not divided into parts compound leafa leaf composed of a number of leaflets on a common stalk entire leafa leaf having a smooth margin without notches or indentations crenate leafa leaf having a scalloped margin serrate leafa leaf having a margin notched like a saw with teeth pointing toward the apex dentate leafa leaf having a toothed margin emarginate leafa leaf having a notch at the apex erose leafa leaf having a jagged margin as though gnawed runcinate leafa leaf having incised margins with the lobes or teeth curved toward the base; as a dandelion leaf lobed leafa leaf having deeply indented margins parallel-veined leafa leaf whose veins run in parallel from the stem parted leafa leaf having margins incised almost to the base so as to create distinct divisions or lobes prickly-edged leafa leaf having prickly margins rosettea cluster of leaves growing in crowded circles from a common center or crown (usually at or close to the ground) cotyledon, seed leafembryonic leaf in seed-bearing plants megasporophyllin non-flowering plants, a sporophyll that bears only megasporangia microsporophyllin non-flowering plants, a sporophyll that bears only microsporangia flower petal, petalpart of the perianth that is usually brightly colored sepalone of the green parts that form the calyx of a flower pinna, pinnuledivision of a usually pinnately divided leaf lily padfloating leaves of a water lily squamulea minute scale trifoliolate leafhaving three leaflets quinquefoliate leafa compound leaf having five leaflets palmate leafa leaf resembling an open hand; having lobes radiating from a common point pinnate leafa leaf resembling a feather; having the leaflets on each side of a common axis decompound leafa leaf having divisions that are themselves compound acerate leaf, needlethe leaf of a conifer acuminate leafa leaf narrowing to a slender point cordate leafa heart-shaped leaf cuneate leafa wedge-shaped leaf having the acute angle at the base deltoid leafa simple leaf shaped like a capital delta elliptic leafa simple leaf shaped like an ellipse ensiform leafa sword-shaped leaf; as of iris hastate leafa leaf shaped like a spearhead with flaring pointed lobes at the base lanceolate leafa leaf shaped like a lance head; tapering to a point at each end elongate leaf, linear leafa long slender leaf lyrate leafa simple leaf having curvature suggestive of a lyre obtuse leafa simple leaf having a rounded or blunt tip oblanceolate leafa leaf having a rounded apex and tapering base oblong leafa simple leaf that is rounded at each end with parallel sides obovate leafan egg-shaped leaf with the narrower end at the base ovate leafan egg-shaped leaf with the broader end at the base orbiculate leafcircular or nearly circular leaf pandurate leaf, panduriform leafa fiddle-shaped leaf peltate leafa shield-shaped leaf; as a nasturtium leaf perfoliate leafa leaf with the base united around--and apparently pierced by--the stem reniform leafa simple kidney-shaped leaf sagittate-leaf, sagittiform leafa leaf shaped like an arrow head spatulate leafspatula-shaped leaf; having a broad rounded apex and narrow base denticulate leafa leaf having a finely toothed margin; minutely dentate plant organ a functional and structural unit of a plant or fungus 2v produce leaves, of plants 2Hyper acquire, develop, get, grow, produce come to have or undergo a change of (physical features and attributes) 1n a sheet of any written or printed material (especially in a manuscript or book) Syn|Hypo|Hyper folio flyleaf a blank leaf in the front or back of a book interleafa blank leaf inserted between the leaves of a book pageone side of one leaf (of a book or magazine or newspaper or letter etc.) or the written or pictorial matter it contains full pagesomething that covers an entire page half pagesomething that covers (the top or bottom) half of a page rectoright-hand page versoleft-hand page title pagea page of a book displaying the title and author and publisher bastard title, half titlea first page of some books displaying only the title of the book sports pageany page in the sports section of a newspaper facing pages, spread, spread head, spreadheadtwo facing pages of a book or other publication foldout, gatefoldan oversize page that is folded in to a book or magazine piece of paper, sheet, sheet of paper paper used for writing or printing 2v turn over pages leaf through a book leaf a manuscript Hyper turn, turn over cause to move around a center so as to show another side of 3v look through a book or other written material 3She leafed through the volume Syn|Hyper flick, flip, riff, riffle, thumb peruse examine or consider with attention and in detail n hinged or detachable flat section (as of a table or door) Hypo|Hyper drop-leaf a hinged leaf on a table that can be raised and supported by a bracket section, segment one of several parts or pieces that fit with others to constitute a whole object |
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英语词典包含147318条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。