单词	testa
释义	testa /ˈtɛstə / noun (plural testae /ˈtɛstiː/) Botany The protective outer covering of a seed; the seed coat.The outer testae were removed and seeds placed in the light on filter paper soaked with sterile distilled water.... Sufficient moisture must be present to penetrate the testa or seed coat, but not so much that the seed rots or that the oxygen level in the soil is reduced. Wheat grains consist of the seed coat, or testa, which surrounds the endosperm and embryo. Origin Late 18th century: from Latin, literally 'tile, shell'.
随便看	binge watching Bingham, George Caleb Binghamton binghi bingle bingo bingo wings Bing, Sir Rudolf bingy binkie binky bin Laden, Osama bin liner binman binnacle binocs binocular binocularly binoculars binocular vision binomial binomial distribution binomial nomenclature binomial theorem binominal

英语词典包含243303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。