名詞 beta:

1. the 2nd letter of the Greek alphabet
2. beets
   同義詞：genus Beta

形容詞 beta:

1. second in order of importance
2. preliminary or testing stage of a software or hardware product

1. A beta ray.
   β射線

be.ta

n.（名詞）
The second letter of the Greek alphabet.See table at alphabet
β：希臘語的第二個字母參見 alphabet
The second item in a series or system of classification.
第二個，次級：在一系列類別中處于第二位的東西
A mathematical measure of the sensitivity of rates of return on a portfolio or a given stock compared with rates of return on the market as a whole. A high degree of such sensitivity indicates moderate or high price volatility.
證券的β因素：一種數(shù)學手段，對某有價證券或某種給定股票的回報率與整個市場回報率相比的敏感性進行測量。這種高程度敏感性表明其價位處于中度或高度易變狀態(tài)
Physics
【物理學】
A beta particle.
β粒子
A beta ray.
β射線
Chemistry
【化學】
The second position from a designated carbon atom in an organic molecule at which an atom or a radical may be substituted.
第二位，β位：有機物分子結構中位于距指定碳原子的第二個位置，在此位置上原子或原子團可被取代
An isomeric variation of a chemical compound. Used in combination:
一種化合物中的異構體。用于化合作用：
例句：
beta-estradiol.
β-雌二酮

來源：
Greek bôta
希臘語 bôta
from Canaanite bêt [house] * see beth
源自 迦南語 bêt [房子] *參見 beth