| 释义 |
al·ter·na·tion
\ˌȯltə(r)ˈnāshən also ˌal-\ noun
(-s)
Etymology: Middle English alternacioun, from Late Latin alternation-, alternatio, from Latin alternatus + -ion-, -io -ion
1.
a. : the act or action of alternating or effecting alternate succession
< intelligent alternation of crops >
b. : alternating occurrence : succession
< the alternation of day and night >
2.
a. : a statement in logic of the form p v q, idiomatically rendered “p or q” and meaning “p or q or both”
b. : the sentential connective v or or used in logic in the inclusive sense
c. : the truth-function or operation symbolized or signified in logic by or or v
3. : the occurrence of different allomorphs or allophones |