English-Thai Dictionary
per-
PRF ผ่าน ตลอด ทั่ว pan
Webster's 1913 Dictionary
PER-
Per-. Etym: [See Per. ]
1. A prefix used to signify through, throughout, by, for, or as an intensive as perhaps, by hap or chance; perennial, that lasts throughout the year; perforce, through or by force; perfoliate, perforate; perspicuous, evident throughout or very evident; perplex, literally, to entangle very much.
2. (Chem. )
Defn: Originally, denoting that the element to the name of which it is prefixed in the respective compounds exercised its highest valence; now, only that the element has a higher valence than in other similar compounds; thus, barium peroxide is the highest oxide of barium; while nitrogen and manganese peroxides, so-called, are not the highest oxides of those elements.
New American Oxford Dictionary
per-
per- ▶prefix 1 through; all over: percuss | perforation | pervade. • completely; very: perfect | perturb. • to destruction; to ill effect: perdition | pervert. 2 Chemistry having the maximum proportion of some element in combination: peroxide | perchloric | permanganate. ORIGIN from Latin (see per ).
Oxford Dictionary
per-
per- |pəː, pə | ▶prefix 1 through; all over: perforation | pervade. • completely; very: perfect | perturb. • to destruction; to ill effect: perdition | pervert. 2 Chemistry having the maximum proportion of some element in combination: peroxide | permanganate. ORIGIN from Latin (see per ).
Spanish Dictionary
per-
per- Prefijo de origen latino que entra en la formación de nombres, adjetivos y verbos y:(i )Aporta un valor intensificador :percatar, percutáneo .(ii )Designa mayor cantidad del elemento al que se une :perborato, perclorato .
The Wordsmith Dictionary