上位 476 ～ 500 の名詞

A path is a track or way that forms naturally over time as people repeatedly walk over the same area. It may start as a small trail that becomes more defined and visible from constant use. Paths are often found in parks, forests, or rural areas, where they are created by foot traffic as people travel along the same route. These paths may not be formally constructed but are shaped by the movement of individuals who pass over the ground consistently.

Gold is a chemical element with the symbol Au and atomic number 79. It is a dense, soft, yellow, highly malleable, and ductile metal that is one of the least reactive chemical elements and is known for its beauty and rarity. Gold has been used throughout history for various purposes, including currency, jewelry, and decoration. It is a highly valued precious metal, and its price fluctuates in the international market. Gold is also an excellent conductor of electricity, making it useful in electronics and other industries. Additionally, gold has been associated with wealth, luxury, and prestige, and it has been an object of human fascination and desire for thousands of years.

Cancer is a disease where abnormal cells grow and spread uncontrollably, often forming lumps or tumors in the body. These abnormal cells can disturb the normal functioning of organs and tissues, leading to a range of symptoms depending on the type and location of the cancer. Common symptoms can include unexplained weight loss, lasting fatigue, changes in bowel or bladder habits, and unusual lumps or growths. There are many different types of cancer, each with its own set of risk factors, causes, and treatment options. Treatment for cancer may include surgery, chemotherapy, radiation therapy, immunotherapy, or a combination of these approaches, depending on the specific type and stage of the cancer. Early detection and immediate treatment are important for improving outcomes and increasing the chances of survival.

Fruit refers to edible parts of plants that grow on trees, bushes, or vines and are typically sweet or sour in taste. Examples include apples, oranges, strawberries, and bananas. Fruits are rich in vitamins, minerals, and fiber, making them an essential part of a healthy diet. They come in various shapes, sizes, and colors, and can be enjoyed fresh, dried, or used in cooking and baking to add flavor and nutritional value to dishes.

A vaccine is a substance given to stimulate the body's immune system to protect against a particular disease. It typically has a small, weakened, or a non-active part of the virus or bacteria that causes the disease. When a person receives a vaccine, their immune system recognizes the foreign substance as a threat and produces antibodies to fight it. This process prepares the immune system to respond quickly if the person is exposed to the disease-causing organism in the future, preventing illness or reducing its intensity.

The ear is a sensory organ located on the sides of the head, responsible for both hearing and maintaining balance. It consists of three main parts: the outer ear, middle ear, and inner ear. The outer ear includes the visible part called the auricle or pinna and the ear canal, which leads to the eardrum. The middle ear contains the eardrum and three tiny bones called the ossicles, which transmit sound vibrations to the inner ear. The inner ear houses the cochlea, a spiral-shaped structure responsible for converting sound into electrical signals that can be interpreted by the brain. In addition to hearing, the ear also plays a crucial role in our sense of balance and spatial orientation.