词根词缀：electro-, electr-, electri-

【来源及含义】Greek > Latin: electric, electricity; from amber, resembling amber, generated from amber which when rubbed vigorously [as by friction], produced the effect of static electricity

【相关描述】Equipment which we use everyday relies on electronics to function including calculators, car controls, cameras, washing machines, medical scanners, mobile telephones, radar systems, computers; as well as many other applications or devices which are listed in this unit.

【相关词根词缀】 A cross reference of word units that are related, directly and/or indirectly, with "electricity": galvano-; hodo-; ion-; piezo-; -tron; volt; biomechatronics, info; mechatronics, info.

【同源单词】acoustoelectric effect, acoustoelectronics, active electrode, ambulatory electrocardiographic monitoring, amphoteric electrolyte, anelectrotonus

词根词缀：super-, supra-, sur-

【来源及含义】Latin: above, over, more than; excessive

【相关描述】Sur- is a form of super- formed through the French and shouldn't be confused with another assimilated sur- form that comes from sub- and means: "under, below, beneath".

In some words, super- is amplified to mean: "on top of; higher in rank or position than; superior to; greater in quality, amount, or degree than others of its kind; to a degree greater than others of its kind; to a degree greater than normal; extra, additional".

【相关词根词缀】 Related "above, over, beyond the normal, excessive" word units: epi-; hyper-; ultra-, ult-. Inter-related cross references, directly or indirectly, involving word units meaning "more, plentiful, fullness, excessive, over flowing": copi-; exuber-; hyper-; multi-; opulen-; ple-; pleio-; plethor-; poly-; total-; ultra-; undu-.

【同源单词】anterosuperior, archaeological survey, beta-gamma survey meter, costosuperior, cybersurfer, electromagnetic surveying

词根词缀：-tron, -tronic, -tronics

【来源及含义】Greek: a suffix referring to a device, tool, or instrument; more generally, used in the names of any kind of chamber or apparatus used in experiments

【相关描述】A possible allusion to the Greek instrumental suffix, as in árotron, "plow" as spelled in the U.S. or "plough", as spelled by the British; from the Greek stem aroun, "to plow".

The suffix -tron is the result of the combining form extracted from electron, used with nouns or combining forms, principally in the names of electron tubes (ignitron; klystron; magnetron) and of devices for accelerating subatomic particles (cosmotron; cyclotron); also, more generally, in the names of any kind of chamber or apparatus used in experiments (biotron).

【相关词根词缀】 A cross reference of word units that are related, directly and/or indirectly, with "electricity": electro-; galvano-; hodo-; ion-; piezo-; volt; biomechatronics, info; mechatronics, info. Related topics about "technology": Biometrics: Index; Biomimetics: Index; Biopiracy; Emerging Technologies; Geographic Information System (GIS): Index; Global Navigation Satellite System (GLONASS); Global Positioning System (GPS); Information Tech; Mechatronics; Nanotechnology; RFID; Robotics; Technological Breakthroughs; Technological Innovations; WAAS; Wireless Communications.

【同源单词】acoustoelectronics, alabastron, animatronics, astronomical spectrograph, betatron, bevatron

词根词缀：vigi-, vig-

【来源及含义】Latin: watchful, wakeful, alert

【同源单词】electronic article surveillance, electronic surveillance, Estot vigilans, invigilate, invigilation, reveille