[A] hand comparator for judging surface roughness of mass-produced parts permits metal surfaces to be compared (Science News Letter).
Useful english dictionary. 2012.
com|men|ta|tor — «KOM uhn TAY tuhr», noun. 1. a person who reports or comments on news, sporting events, plays, concerts, or other things: »a radio or television commentator. 2. a writer of comments or annotations; annotator. ╂[< Latin commentātor <… … Useful english dictionary
com|mu|ta|tor — «KOM yuh TAY tuhr», noun. 1. a device for reversing the direction of an electric current in the armature winding of a direct current generator or motor. 2. a revolving part in a generator or motor that carries the current to or from the brushes … Useful english dictionary
com|pen|sa|tor — «KOM puhn SAY tuhr», noun. 1. a person or thing that compensates. 2. a device for producing mechanical compensation. 3. Electricity. a transformer in which a part of the primary coil is used as a secondary, or a part of the secondary as a primary … Useful english dictionary
com|pet|i|tor — «kuhm PEHT uh tuhr», noun. a person who tries hard to win or gain something wanted by others; rival: »There are many competitors for the golf championship. He is head and shoulders above his competitors (London Times) … Useful english dictionary
com|pos|i|tor — «kuhm POZ uh tuhr», noun. = typesetter. (Cf. ↑typesetter) … Useful english dictionary
com|pur|ga|tor — «KOM puhr GAY tuhr», noun. a witness who swears to the innocence or veracity of an accused person … Useful english dictionary
com·men·ta·tor — /ˈkɑːmənˌteıtɚ/ noun, pl tors [count] 1 : a person who discusses important people and events on television, in newspapers, etc. a political commentator social commentators 2 : a person who provides a description on a radio or television program… … Useful english dictionary
com·pet·i·tor — /kəmˈpɛtətɚ/ noun, pl tors [count] : someone who is trying to win or do better than all others especially in business or sports : someone who is competing We offer better rates than our competitors. There were more than 500 competitors in the… … Useful english dictionary
ac|com´mo|da´tor — ac|com|mo|date «uh KOM uh dayt», verb, dat|ed, dat|ing. –v.t. 1. to have room for; hold comfortably: »This airplane is large enough to accommodate over 400 passengers. SYNONYM(S): See syn. under contain. (Cf. ↑ … Useful english dictionary
ster|e|o|com|pa|ra|tor — «STEHR ee oh KOM puh RAY tuhr, kuhm PAR uh ; STIHR », noun. an instrument on the stereoscopic principle, used to superpose a pair of astronomical photographs taken at an interval of time, and detect any movement of a star or other object which… … Useful english dictionary
