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.
bald. 1. (of people) with little or no hair on the head. a bald head; He is going bald (= becoming bald).ald. adj. baldÂ·er, baldÂ·est. 1. Lacking hair on the head. 2. Lacking a natural or usual covering: a bald spot on the lawn. 3. Lacking treads: a bald tire.