"is-" Definition

  1. See Iso-.
  2. A prefix or combining form, indicating identity, or equality; the same numerical value; as in isopod, isomorphous, isochromatic.
  3. Applied to certain compounds having the same composition but different properties; as in isocyanic.
  4. Applied to compounds of certain isomeric series in whose structure one carbon atom, at least, is connected with three other carbon atoms; -- contrasted with neo- and normal; as in isoparaffine; isopentane.

More About is-

Position in dictionary: 53426 of 111710 words.
Word Type: , , , ,
Words that start with "is-": 1
Words that end with "is-": 5
Words that contain "is-": 7
Next words in dictionary: isabel, isabel color, isabella, isabella color, isabella grape
Previous words in dictionary: is't, is, irvingite, irruptive, irruption

English Dictionary Definition of is-

Read all of this dictionary's definitions for the word "is-" on this page. Also learn the word type, other words that start with, end with or contain this word, the position in the dictionary and the next and previous terms. The historical definitions of the word "is-" found on this page is taken from the 1913 edition of Webster's Unabridged Dictionary.