a. 正中的

Mid \Mid\ (m[i^]d), a. [Compar. wanting; superl. {Midmost}.]
[AS. midd; akin to OS. middi, D. mid (in comp.), OHG. mitti,
Icel. mi[eth]r, Goth. midjis, L. medius, Gr. me`sos, Skr.
madhya. [root]271. Cf. {Amid}, {Middle}, {Midst}, {Mean},
{Mediate}, {Meridian}, {Mizzen}, {Moiety}.]
1. Denoting the middle part; as, in mid ocean.

No more the mounting larks, while Daphne sings,
Shall list'ning in mid air suspend their wings.
--Pope.

2. Occupying a middle position; middle; as, the mid finger;
the mid hour of night.

3. (Phon.) Made with a somewhat elevated position of some
certain part of the tongue, in relation to the palate;
midway between the high and the low; -- said of certain
vowel sounds; as, [=a] ([=a]le), [e^] ([e^]ll), [=o]
([=o]ld). See Guide to Pronunciation, [sect][sect] 10, 11.

Note: Mid is much used as a prefix, or combining form,
denoting the middle or middle part of a thing; as,
mid-air, mid-channel, mid-age, midday, midland, etc.
Also, specifically, in geometry, to denote a circle
inscribed in a triangle (a midcircle), or relation to
such a circle; as, mid-center, midradius.


Midmost \Mid"most`\, a. [OE. middemiste. Cf. {Foremost}.]
Middle; middlemost.

Ere night's midmost, stillest hour was past. --Byron.