any foreign substance in the body that can trigger a response from the immune system

抗原, 外源性物质
a steroid hormone that the body produces and is used in medicine to help cure skin diseases

皮质醇, 肾上腺皮质激素
a cell or a group of cells created through a natural or artificial process from a source that they are genetically identical to

克隆, 克隆体
(of genes) causing a person to inherit a particular physical feature, even if it is only present in one parent's genome

显性, 主导
an offspring of a human or animal that is not born yet, particularly a human aged more than eight weeks after conception

胎儿, 胚胎
all of the genes that are available within breeding populations of a particular species of animal or plant

基因库, 基因池
the controlled maintenance of a specific temperature; fostering optimal conditions for the development of organisms, processes, or materials

孵化, 培养
a colorless liquid consisting of white blood cells that helps to prevent infections from spreading

淋巴, 淋巴液
a chemical substance that transmits messages from a neuron to another one or to a muscle

神经递质, 神经传导物质
a close and often long-term interaction between two different species living in close physical association, typically to the advantage of both

共生关系, 共生
a representative or characteristic sample that is examined or analyzed to gain insights or understanding of a particular group or category

标本, 样本
(of a cell, gland, or organ) to produce and release a liquid substance in the body

分泌, 分泌出
the process of natural multiplication; representing the expansion of a population over time

繁殖, 传播
the natural coloring of tissues, surfaces, or structures; contributing to the characteristic hues or tones observed in animals, plants, or human beings

色素沉着, 颜料
the chemical processes through which food is changed into energy for the body to use

代谢, 新陈代谢
a method used for measuring how old an organic material is by calculating the amount of carbon they contain

碳定年法, 碳测年
the study of how communication and control work in living organisms and machines, focusing on information flow, feedback, and system regulation

控制论, 网络论
a branch of medical science primarily focusing on the study of the causes and effects of disease or injury

病理学, 病理
the study of the behavior of air as it interacts with solid objects, particularly the flow of air around and through objects, and the effects of this interaction on the objects

空气动力学, 气动学
having a tendency to change rapidly and unpredictably, often characterized by fluctuations or instability

易变的, 不稳定的
related to heat or temperature, including how heat moves, how materials expand with temperature changes, and the energy stored in heat

热的, 热量的
the bending of the wave's path as it passes from one medium to another; caused by a change in its speed or direction

折射, 光的折射
(physics) any of the smallest units that energy or matter consists of, such as electrons, atoms, molecules, etc.

粒子, 微粒
the process or action of splitting a nucleus into two or more parts resulting in the release of a significant amount of energy

核分裂, 核裂变
(physics) the reaction in which two nuclei join together and produce energy

核聚变, 核融合
the strength of a moving object determined by multiplying how heavy it is by how fast it is going

动量, 势头
each of two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei, leading to variation in atomic mass

同位素, 同素异形体
