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.
Absent Parent Law & Legal Definition. An absent parent refers to non-custodial parent who is obligated to pay partial child support and who is physically absent from the child's home.The term also refers to a parent who has abandoned his or her child, and failed to maintain contact with the child.n absent parent refers to non-custodial parent who is obligated to pay partial child support and who is physically absent from the child's home.