Associations to the word «Tetrad»
Wiktionary
TETRAD, noun. A group of four things.
TETRAD, noun. (cartography) A unit of land area of two by two (that is, four) square kilometres.
TETRAD, noun. (chemistry) A tetravalent atom or radical.
TETRAD, noun. (biology) Two pairs of sister chromatids (a dyad pair) aligned in a certain way and often on the equatorial plane during the meiosis process.
TETRAD, noun. (biology) A group of four haploid and immature pollen grains in tetrahedral fashion produced by meiotic microsporogenesis.
Dictionary definition
TETRAD, noun. The cardinal number that is the sum of three and one.
Wise words
Always aim at complete harmony of thought and word and deed.
Always aim at purifying your thoughts and everything will be
well.