Hello, you have come here looking for the meaning of the word
cactoid. In DICTIOUS you will not only get to know all the dictionary meanings for the word
cactoid, but we will also tell you about its etymology, its characteristics and you will know how to say
cactoid in singular and plural. Everything you need to know about the word
cactoid you have here. The definition of the word
cactoid will help you to be more precise and correct when speaking or writing your texts. Knowing the definition of
cactoid, as well as those of other words, enriches your vocabulary and provides you with more and better linguistic resources.
English
Noun
cactoid (plural cactoids)
- A member of the cactus subfamily Cactoideae.
- (topology) A locally connected continuum that is the closure of the union of an at most countable number of spheres and simple arcs, of which every simple closed contour is contained in one and only one of the spheres.
1951, John William Theodore Youngs, The Representation Problem for Fréchet Surfaces, page 27:It is well known that a Peano space is a cactoid if and only if each of its true cyclic elements is a 2-sphere.
Anagrams