crab

crab1
noun
  1. a crustacean with a broad carapace, stalked eyes, and five pairs of legs, the first pair of which are modified as pincers. Crabs are abundant on many shores, especially in the tropics where some have become adapted to life on land
    蟹；螃蟹
  2. Many families in the order Decapoda, class Malacostraca
    十足目，软甲亚纲许多科
    ■[mass noun]the flesh of a crab as food
    蟹肉
    ■(the Crab)the zodiacal sign or constellation Cancer
    巨蟹星座
  3. (亦作 crab louse)a louse that infests human body hair, especially in the genital region, causing extreme irritation
    阴虱
  4. Phthirus pubis, family Pediculidae, order Anoplura
    拉丁名 Phthirus pubis，虱目，虱科
    ■(crabs)(informal)an infestation of crab lice
    (非正式)阴虱（寄生）病
  5. a machine for picking up and lifting heavy weights
    起重机；吊车
verb
  1. [no obj., with adverbial of direction]move sideways or obliquely
    横行；斜行
    he began crabbing sideways across the roof.
    他开始斜行，横着走过屋顶。
    ■[with obj.]steer (an aircraft or ship) slightly sideways to compensate for a crosswind or current
    （遇到侧风或水流、气流时）使（飞机或船）作偏流修正
  2. [no obj.]fish for crabs
    捕蟹；捉蟹
常用词组
catch a crab
  1. (Rowing)effect a faulty stroke in which the oar is jammed under water or misses the water altogether
    (赛艇)失一桨（指划得过浅或过深）
派生
crabber
noun
crablike
( & )
adjective& adverb
语源
  1. Old English crabba, of Germanic origin; related to Dutch krabbe, and more distantly to Dutch kreeft and German Krebs; also crab
crab2
noun
  1. short for crab apple
    crab apple的简称
crab3
(crabbed, crabbing)
(informal)(非正式)
  1. [no obj.]grumble, typically about something petty
    （多指为小事）抱怨；找岔子
    on picnics, I would crab about sand in my food.
    野餐时，我会为食物中有沙子而抱怨。
  2. [with obj.]act so as to spoil
    破坏；干扰；扰乱
    you’re trying to crab my act.
    你在试图破坏我的事。
语源
  1. late 16th cent. (referring to hawks, meaning 'claw or fight each other'): from Low German krabben; related to crab
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