See Also: Feynman(dictionary)
Feynman diagram(encyclopedia)
Feynman, Richard P(hillips)(encyclopedia)
Feynman, Richard Phillips(dictionary)
lesser cul-de-sac(medicine)
lesser(dictionary)
lesser(dictionary)
lesser pelvis(medicine)
lesser peritoneal sac(medicine)
lesser trochanter(medicine)

Feynman diagram (sh) and lesser (iou)


Feynman diagram (sh)




Graphical method of representing the interactions of elementary particles.

It was invented by Richard P. Feynman, who introduced the diagrams as an aid to calculating the processes that occur between electrons and photons. A Feynman diagram consists of two axes, one representing space, the Other representing time. Electrons are represented as straight lines, while photons are shown as wavy lines. The interaction between particles appears as a junction of three lines, or a vertex. Feynman diagrams are now used to show all types of particle interactions.


lesser (iou)



lesser adjective, noun, & adverb. ME.
[from LESS adjective + -ER3: a double compar.]
A. adjective.
Not so great or much (as something mentioned or implied); inferior, of lower status or worth; smaller. Chiefly, & now only, attrib. ME.
A. Desai The lesser functionaries of the camp to whom the commandant left the daily routine. F. Weldon Lesser men do that, who don't have the same sensitivities. Dennis Potter He did not call out, nor make any lesser sign of distress.
spec.
a. Designating the smaller of two similar or related plants, animals, anatomical parts, or places. Opp. greater (see GREAT adjective 7e). Cf. LEAST adjective 4. E17.
Lesser Antilles, lesser celandine, lesser noctule, lesser omentum, lesser spotted woodpecker, etc.
b. Music. Designating a minor interval. Now rare. L17.
Special collocations: Lesser Asia arch. Asia Minor. Lesser Bear: see BEAR noun1 2. lesser breed people of inferior status. lesser diesis: see DIESIS 1. Lesser Dog: see DOG noun 5. lesser doxology: see DOXOLOGY 2. Lesser Entrance: see ENTRANCE noun. lesser evil: see EVIL noun1. lesser fry: see FRY noun1. lesser light [Genesis 1:16] a person of less eminence or importance. Lesser Wain: see WAIN noun1 2.
b. absol. as noun. The lesser person or thing. L15.
lesser of two evils: see EVIL noun1.
C. adverb. = LESS adverb. Long obsolete exc. in lesser-known adjective L16.
lesserness noun (rare) M16.