| red bone marrow |
red marrow: bone marrow of children and some adult bones that is required for the formation of red blood cells
출처: wordnet.princeton.edu/perl/webwn
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| refine |
polish: improve or perfect by pruning or polishing; "refine one's style of writing" complicate: make more complex, intricate, or richer; "refine a design or pattern" treat or prepare so as to put in a usable condition; "refine paper stock"; "refine pig iron"; "refine oil" reduce to a fine, unmixed, or pure state; separate from extraneous matter or cleanse from impurities; "refine sugar" attenuate or reduce in vigor, strength, or validity by polishing or purifying; "many valuable nutrients are refined out of the foods in our modern diet" make more precise or increase the discriminatory powers of; "refine a method of analysis"; "refine the constant in the equation"
출처: wordnet.princeton.edu/perl/webwn
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| resinoid |
a plastic containing resins
출처: wordnet.princeton.edu/perl/webwn
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| reflectometer |
a meter that measures the reflectance of a surface
출처: wordnet.princeton.edu/perl/webwn
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| resistance |
the action of opposing something that you disapprove or disagree with; "he encountered a general feeling of resistance from many citizens"; "despite opposition from the newspapers he went ahead" any mechanical force that tends to retard or oppose motion electric resistance: a material's opposition to the flow of electric current; measured in ohms the military action of resisting the enemy's advance; "the enemy offered little resistance" immunity: (medicine) the condition in which an organism can resist disease underground: a secret group organized to overthrow a government or occupation force the degree of unresponsiveness of a disease-causing microorganism to antibiotics or other drugs (as in penicillin-resistant bacteria) (psychiatry) an unwillingness to bring repressed feelings into conscious awareness resistor: an electrical device that resists the flow of electrical current group action in opposition to those in power
출처: wordnet.princeton.edu/perl/webwn
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