positive是什么意思（positive的用法）

大家好，知识小编来为大家讲解下。positive是什么意思，positive的用法很多人还不知道，现在让我们一起来看看吧！

一、positive是什么意思

1、positive 乐观的，积极的，实证的，阳性的，正极的

2、来自position,放置，位置，-ive,形容词后缀。即放好的，有位置的，原用于法律术语解决的，后引申诸多正面词义。

二、positive的用法

1、positive (adj.)

2、early 14c., originally a legal term meaning "formally laid down," from Old French positif (13c.) and directly from Latin positivus "settled by agreement, positive" (opposed to naturalis "natural"), from positus, past participle of ponere "put, place" (see position (n.)). Sense of "absolute" is from mid-15c. Meaning in philosophy of "dealing only with facts" is from 1590s. Sense broadened to "expressed without qualification" (1590s), then "confident in opinion" (1660s); mathematical use is from 1704; in electricity, 1755. Psychological sense of "concentrating on what is constructive and good" is recorded from 1916.

3、positive (n.)

4、1520s, from positive (adj.).

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