noun🔗SharePlan médian(rare outside entomology) The mesial plane dividing the body into similar right and left halves."The surgeon carefully marked the patient's abdomen along the meson before making the incision, ensuring symmetrical access for the procedure. "Le chirurgien a soigneusement marqué l'abdomen du patient le long du plan médian avant de pratiquer l'incision, assurant un accès symétrique pour la procédure.anatomybodybiologyinsectChat with AIVocabulary GamePractice Reading
noun🔗ShareMésonA member of a group of subatomic particles having a mass intermediate between electrons and protons. (The most easily detected mesons fit this definition.)"Physicists study mesons to understand the forces that hold the nucleus of an atom together. "Les physiciens étudient les mésons pour comprendre les forces qui maintiennent le noyau d'un atome.physicsmassChat with AIVocabulary GamePractice Reading
noun🔗ShareMéson(now specifically) An elementary particle that is composed of a quark and an antiquark, such as a kaon or pion. (Mesons composed of rarer quarks are much heavier.)"Physicists study the properties of a meson, a type of particle made of a quark and an antiquark. "Les physiciens étudient les propriétés d'un méson, un type de particule composé d'un quark et d'un antiquark.physicselementChat with AIVocabulary GamePractice Reading