| 释义 |
ostiole|ˈɒstɪəʊl|
Also irreg. osteole; and in L. form.
[ad. L. ostiolum little door, dim. of ostium door.]
A small orifice or opening; a. (Bot.) the orifice or opening in the conceptacles and perithecia of certain algæ and fungi, through which the spores are discharged; also, openings of the stomata or breathing pores; b. (Entom.) the orifice of the ‘stink-gland’ in the thorax of heteropterous insects (rare).
1835Lindley Introd. Bot. (ed. 2) 234 Ostiolum, is the orifice of the perithecium of Sphæria. 1857Mayne Expos. Lex., Ostiolum, a little door; an ostiole. 1870Bentley Man. Bot. (ed. 2) 376 The spermagonium..has one or more cavities, with a small orifice at the top termed the ostiole or pore. 1874Cooke Fungi 61 Opening by a pore or ostiolum at the apex. 1890[see below].
Hence ˈostiolar a., of or pertaining to an ostiole; ˈostiolate a., having an ostiole or ostioles.
1857Mayne Expos. Lex., Ostiolatus, having ostioles or little openings: ostiolate. 1880Gray Struct. Bot. (ed. 6) 423/1. 1890 Cent. Dict. s.v., The ostiolar canal or the channel connected with the ostioles of bugs. |