annual
an·nu·al
A0318000 (ăn′yo͞o-əl)annual
(ˈænjʊəl)an•nu•al
(ˈæn yu əl)adj.
an·nu·al
(ăn′yo͞o-əl) Botanyannual
Noun | 1. | ![]() |
2. | ![]() | |
Adj. | 1. | annual - completing its life cycle within a year; "a border of annual flowering plants" |
2. | ![]() |
单词 | annual | ||||||||||||
释义 | annualan·nu·alA0318000 (ăn′yo͞o-əl)annual(ˈænjʊəl)an•nu•al(ˈæn yu əl)adj. an·nu·al(ăn′yo͞o-əl) Botanyannual
annualannual(ˈӕnjuəl) adjectiveannual→ 每年的zhCNannualannual,plant that germinates from seed, blossoms, produces seed, and dies within one year. Annuals propagate themselves by seed only, unlike many biennialsbiennial,plant requiring two years to complete its life cycle, as distinguished from an annual or a perennial. In the first year a biennial usually produces a rosette of leaves (e.g., the cabbage) and a fleshy root, which acts as a food reserve over the winter. ..... Click the link for more information. and perennialsperennial, any plant that under natural conditions lives for several to many growing seasons, as contrasted to an annual or a biennial. Botanically, the term perennial applies to both woody and herbaceous plants (see stem) and thus includes numerous members of the kingdom. ..... Click the link for more information. . They are thus especially suited to environments that have a short growing season. Cultivated annuals are usually considered to be of three general types: tender, half-hardy, and hardy. Tender and half-hardy annuals do not mature and blossom in one ordinary temperate growing season unless they are started early under glass and are set outdoors as young plants. Hardy annuals are usually sown where they are expected to bloom. Quite often they reseed themselves year after year. Blooming is prolonged by cutting the flowers before the seeds can form. Typical annual flowers are cosmos, larkspur, petunia, and zinnia; annual vegetables include corn, tomatoes, and wheat. BibliographySee H. G. W. Fogg, Dictionary of Annual Plants (new ed. 1972). Annuala plant that completes its life cycle within a single growing season of usually two to five months. The seeds usually sprout in the spring or summer; by autumn (in temperate climates) the plant is bearing fruit and dying. Annuals include flax, millet, buckwheat, spring wheat, corn cockle, and wild oats. Annual plants that develop particularly rapidly are known as ephemerals; they often mature in four to ten weeks. Some annuals, including knapweeds and shepherd’s purse, can survive the winter in the rosette phase if germination occurs late in the season. Annuals grow only in those regions where they can complete their growth cycle in the period of a single year. Their numbers are greatest in desert areas and fewest in tundras. Annuals are most common where the plant cover is the least dense. In areas where dense plant cover is present, as in meadows, the annuals generally obtain supplementary nourishment through parasitism or symbiosis; these annuals include such hemiparasites as Alectrolophus, eyebright, and cowwheat, as well as such mycotrophic plants as clover, alfalfa, and gentian. As growing conditions worsen (with increasingly higher latitudes in the northern hemisphere or higher elevations in the mountains), the number of annual plants declines. Some species that are not able to complete their life cycle in harsh conditions in one year become perennials; an example is annual blue grass, which becomes a perennial in arctic and alpine settings. annualannualannualadjective Referring to that which occurs once yearly.noun A publication produced on a yearly basis. Patient discussion about annualQ. I am having mammograms annually since 10 years (now 43). I am having mammograms annually since 10 years (now 43), I'm not sure how much of the "armpit" area is included. I have recently noticed a lump on my right about half way between my breast and my armpit. It can be tricky to locate at times and I really don't think it's anything serious as it feels smooth and round. I do have very dense breasts. I had a core biopsy done on the same breast, upper & outer quadrant, some years ago that was benign. I am going to have my mammo for this year and I was wondering if this area between the breast and the armpit will be covered? Q. What is the best way to treat fungal infection so it wont come back every year at the same time?? I don't know where I got it from- maybe caught it in a public shower,some people say it develops while the foot is in the shoe for long hours- I'm not sure- but every fall, for like 5 years now, I've been having this fungal infection in a few spots in my feet. usually in the same exact spots and ewvery year another one show up. what to do to make it go away?? it's real ugly and itchy, can't stand it. any help would be appreciated... Q. During every year winter my mom depression increases,so please tell which ways to cope up? My mom is 47 and every year during winter her depression increases. She craves for sweets and cannot work if she does not bask in the sunshine every day. During these days she eats a lot and sleeps a lot. She is gaining weight. This weight gain increases her depression. She loves cooking but she cannot cook and eats all the junks available in market. She sleeps in day. She cannot get good sleep at night. This again adds on her stress. Please tell any ways to cope up. AnnualAnnualSee ANNU annual
Synonyms for annual
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