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[Middle English, from mid, middle; see mid1.]
Usage Note: Many compounds other than those entered here are formed with mid-. In forming compounds, mid- is normally joined to the following word or element without a space or hyphen: midpoint. If the second element begins with a capital letter, it is separated with a hyphen: mid-May. It is always acceptable to separate the elements with a hyphen to prevent possible confusion with another form, as, for example, to distinguish mid-den (the middle of a den) from the word midden. Note that the adjective mid1 is a separate word, though, as is the case with any adjective, it may be joined to another word with a hyphen when used as a unit modifier: in the mid Pacific but a mid-Pacific island.
indicating a middle part, point, time, or position: midday; mid-April; mid-Victorian.
[Old English; see middle, mid1]
1. being at or near the middle point of: in mid autumn.
2. (of a vowel) articulated with an opening above the tongue approximately intermediate between those for high and low, as the vowels of bet, bait, but, and boat. Compare high (def. 20), low 1 (def. 27).n.
3. Archaic. the middle.
[before 900; Middle English, Old English midd-; c. Old High German mitti, Old Norse mithr, Gothic midjis, Old Irish mide, Latin medius, Greek mésos, Skt madhya middle]
a combining form representing mid1: midday; mid-Victorian.
mid-[ˈmɪd-] prefix → mi-
the mid-eighteenth century → le milieu du dix-huitième siècle
to be in one's mid-thirties → avoir dans les trente-cinq ans
He's in his mid-thirties → Il a dans les trente-cinq ans.
mid-May → la mi-mai
mid-afternoon → le milieu de l'après-midimid-air [ˌmɪdˈɛər] n
in mid-air → en plein ciel mid-air collisionmid-air collision n → collision f en plein ciel