Webster's 1913 Dictionary
SEMIFORM
SEMIFORM Sem "i *form `, n.
Defn: A half form; an imperfect form.
SEMIFORMED
SEMIFORMED Sem "i *formed `, a.
Defn: Half formed; imperfectly formed; as, semiformed crystals.
New American Oxford Dictionary
semiformal
sem i for mal |ˌsemēˈfôrməl, ˌsemˌī -ˌsɛmiˈfɔrməl | ▶adjective combining formal and informal elements: in the semiformal atmosphere irritations can be aired. • used to describe clothing that is neither formal nor casual and that is typically worn for a dance, wedding, or other event: the casino has a semiformal dress code (men must wear a tie and jacket ). ▶noun an event at which semiformal attire is expected: it had organized its own spring semiformal at a nearby hotel.
Oxford Dictionary
semiformal
sem i for mal |ˌsemēˈfôrməl, ˌsemˌī -ˌsɛmiˈfɔrməl | ▶adjective combining formal and informal elements: in the semiformal atmosphere irritations can be aired. • used to describe clothing that is neither formal nor casual and that is typically worn for a dance, wedding, or other event: the casino has a semiformal dress code (men must wear a tie and jacket ). ▶noun an event at which semiformal attire is expected: it had organized its own spring semiformal at a nearby hotel.
Sanseido Wisdom Dictionary
semiformal
s è mi f ó rmal 形容詞 やや格式ばった, 準正式の .
The Wordsmith Dictionary