Atoms of the same element that have different masses are called isotopes. Different masses result when there are different numbers of neutrons. All atoms of a particular element have the same number...
Definition of absent. 1 : not present at a usual or expected place : missing was absent from class today sharing memories of absent friends She was conspicously absent [=her absence was very noticeable] at the meeting. absently. adverb He replied absently to her question. Examples of absent in a sentence.
Absence of interruption, a succession of parts intimately united, for example, the unbroken conjunction of cells and structures that make up a single bone of the skull. Compare: contiguity. [L. continuus, continued]. /conÂ·tiÂ·nuÂ·iÂ·ty/ (konâ³tÄ­-nuÂ´Ä­-te) the quality of being without interruption or separation.