noun🔗ShareトレーサーA compound, element, or isotope used to track the progress or history of a natural process."Scientists used a radioactive tracer to track the movement of water through the soil. "科学者たちは、土壌を通る水の動きを追跡するために放射性トレーサーを使用しました。compoundelementchemistrybiologybiochemistrymedicinescienceprocessChat with AIVocabulary GamePractice Reading
noun🔗Share曳光弾A round of ammunition for a firearm that contains magnesium or another flammable substance arranged such that it will burn and produce a visible trail when fired in the dark."The hunter used a tracer round to mark his target in the dark forest. "ハンターは暗い森の中で標的をマークするために曳光弾を使用した。militaryweaponmaterialChat with AIVocabulary GamePractice Reading
noun🔗Share追跡、追跡行為The act or state of tracking or investigating something."The police investigation is a tracer of the thief's movements. "警察の捜査は、泥棒の動きを追跡することです。actionprocessChat with AIVocabulary GamePractice Reading
noun🔗Share追跡、追跡要求A request to trace the movements of a person or an object, such as a shipment."The shipping company issued a tracer for the lost package. "運送会社は、紛失した荷物に対して追跡要求を発行しました。communicationbusinessservicetechnologyindustryChat with AIVocabulary GamePractice Reading
noun🔗Share追跡者, 追跡する人A person who traces something."The art student became a skilled tracer, able to perfectly copy the intricate lines of the master drawing. "美術学生は熟練した追跡者となり、巨匠のデッサンの複雑な線を完璧にコピーできるようになった。personjobChat with AIVocabulary GamePractice Reading
noun🔗Shareトレーサー, 追跡装置A device or instrument used to assist in making tracings."The art student used a special tracer to copy the intricate design onto her canvas. "美術学生は、複雑なデザインをキャンバスにコピーするために、特別なトレーサーを使用しました。devicetechnologymachineChat with AIVocabulary GamePractice Reading
