英文字典中文字典


英文字典中文字典51ZiDian.com



中文字典辞典   英文字典 a   b   c   d   e   f   g   h   i   j   k   l   m   n   o   p   q   r   s   t   u   v   w   x   y   z       







请输入英文单字，中文词皆可：

yolk    音标拼音: [j'ok]
n. 蛋黄

蛋黄

yolk
n 1: the yellow spherical part of an egg that is surrounded by
the albumen [synonym: {egg yolk}, {yolk}]
2: nutritive material of an ovum stored for the nutrition of an
embryo (especially the yellow mass of a bird or reptile egg)
[synonym: {yolk}, {vitellus}]

Yolk \Yolk\ (y[=o]lk or y[=o]k; 277), n. [OE. yolke, yelke,
[yogh]olke, [yogh]elke, AS. geoloca, geoleca, fr. geolu
yellow. See {Yellow}.] [Written also {yelk}.]
[1913 Webster]
1. The yellow part of an egg; the vitellus.
[1913 Webster]

2. (Zool.) An oily secretion which naturally covers the wool
of sheep.
[1913 Webster]

{Yolk cord} (Zool.), a slender cord or duct which connects
the yolk glands with the egg chambers in certain insects,
as in the aphids.

{Yolk gland} (Zool.), a special organ which secretes the yolk
of the eggs in many turbellarians, and in some other
invertebrates. See Illust. of {Hermaphrodite} in Appendix.


{Yolk sack} (Anat.), the umbilical vesicle. See under
{Unbilical}.
[1913 Webster]

安装中文字典英文字典查询工具!


中文字典英文字典工具:
选择颜色:
输入中英文单字

































































英文字典中文字典相关资料:


  • Eggs: Are they good or bad for my cholesterol? - Mayo Clinic
    Get the latest information about eggs, cholesterol and heart disease
  • Testicular cancer - Diagnosis and treatment - Mayo Clinic
    Several types of nonseminomas exist They include choriocarcinoma, embryonal carcinoma, teratoma and yolk sac tumor Other types of testicular cancer exist, but they are very rare Staging the cancer Once your doctor confirms your diagnosis, the next step is to see whether the cancer has spread beyond the testicle This is called the cancer's
  • Blighted ovum: What causes it? - Mayo Clinic
    Blighted ovum is an older term for a certain type of pregnancy that leads to an early miscarriage It's now known as an anembryonic (an-em-bree-on-ik) pregnancy With a healthy pregnancy, an egg fertilized by sperm develops into the earliest form of an unborn baby, called an embryo But with an
  • Placenta: How it works, whats normal - Mayo Clinic
    The placenta plays a crucial role during pregnancy Find out what the placenta does, issues that might affect it and how it is delivered
  • Egg allergy - Symptoms causes - Mayo Clinic
    Egg allergy symptoms vary from person to person They usually happen soon after eating an egg or a food made with egg Egg allergy symptoms can include: Skin swelling or itchy bumps called hives — the most common egg allergy reaction Stuffy or runny nose and sneezing, also known as allergic rhinitis Digestive symptoms such as cramps, upset stomach and vomiting Asthma symptoms such as
  • Twin pregnancy: Getting ready for twins or multiples
    If you're expecting more than one baby, such as twins, you have a multiple pregnancy Here's what to know when you're getting ready for twins or other multiples
  • Germ cell tumors - Symptoms and causes - Mayo Clinic
    Symptoms Symptoms of germ cell tumors depend on where they happen Symptoms often happen because a growing tumor puts pressure on nearby tissue or organs For example, a germ cell tumor in an ovary may lead to pelvic pain, back pain, bloating or swelling in the belly A germ cell tumor in a testicle may cause swelling or pain in the testicle or scrotum A lump in the testicle is a common
  • Bird flu (avian influenza) - Symptoms and causes - Mayo Clinic
    Flu viruses in other animals, such as birds, may be a risk to people Learn more about the symptoms, causes, prevention and treatment for bird flu in people
  • Beef stroganoff - Mayo Clinic
    4 cups uncooked no-yolk egg noodles 1 2 can low-fat, low-sodium cream of mushroom soup (not diluted) 1 2 cup water 1 tablespoon all-purpose (plain) flour 1 2 teaspoon paprika 1 2 cup fat-free or reduced-fat sour cream Directions In a nonstick frying pan, saute the onions over medium heat until they're see-through, about 5 minutes
  • Flu vaccine: Safe for people with egg allergy? - Mayo Clinic
    If you have egg allergy, you still may be able to receive the flu vaccine





中文字典-英文字典  2005-2009