a part of the cell containing DNA and RNA and responsible for growth and reproduction
any histologically identifiable mass of neural cell bodies in the brain or spinal cord
the positively charged dense center of an atom
(astronomy) the center of the head of a comet; consists of small solid particles of ice and frozen gas that vaporizes on approaching the sun to form the coma and tail
in a close relation or position in time or space; "the onsets were closely timed"; "houses set closely together"; "was closely involved in monitoring daily progress"
in a close manner; "the two phenomena are intimately connected"; "the person most nearly concerned"
a category of things distinguished by some common characteristic or quality; "sculpture is a form of art"; "what kinds of desserts are there?"
tolerant and forgiving under provocation; "our neighbor was very kind about the window our son broke"
agreeable, conducive to comfort; "a dry climate kind to asthmatics"; "the genial sunshine";"hot summer pavements are anything but kind to the feet"
having or showing a tender and considerate and helpful nature; used especially of persons and their behavior; "kind to sick patients"; "a kind master"; "kind words showing understanding and sympathy"; "thanked her for her kind letter"
being full of or promoting cheer; having or showing good spirits; "her cheerful nature"; "a cheerful greeting"; "a cheerful room"; "as cheerful as anyone confined to a hospital bed could be"