oxean.

Brit.

/ˈɒksɪə/, U.S.

/ˈɑksiə/

Inflections: Plural unchanged.

Origin: A borrowing from Greek. Etymon: Greek ὀξέα.

Etymology: < ancient Greek ὀξέα (Ionic (Attic ὀξεῖα ); also as a variant reading in Hippocrates), feminine (agreeing with ῥάβδος rhabdus n.) corresponding to ὀξύς sharp (see oxy- comb. form¹).

Zoology.

In sponges: a needle-shaped spicule which is pointed at both ends.

ΘΚΠ

the world > animals > invertebrates > subkingdom Parazoa > phylum Porifera > [noun] > member of > parts of > sponge spicule > pointed at both ends

oxea1886

rhabd1890

1886 R. von Lendenfeld in Proc. Zool. Soc. 585 Family Homorhaphidae Ridley and Dendy. Megasclera oxea or strongyla; no differentiated microsclera except toxia.

1887 Encycl. Brit. XXII. 416/1 By far the commonest form is the oxea, a needle-shaped form pointed at both ends and produced by growth from a centre at the same rate in opposite directions along the same axis.

1924 Proc. Royal Soc. B. 97 244 The main skeleton is radially arranged and the megascleres consist of triænes of various kinds—the most characteristic being large dichotriænes—and large oxea.

1968 P. Brien in M. Florkin & B. T. Scheer Chem. Zool. II. i. i. 13 They are straight or arcuate oxea, strongyles, tylotes, amphistrongyles, smooth or spiny.

1996 Proc. National Acad. Sci. U.S.A. 93 6241/2 Criteria used in sponge specimen identification included..the size and shape of siliceous spicules, which included both oxea and style types.

Derivatives

ˈoxeate adj. having the form of an oxea.

ΘΚΠ

the world > animals > invertebrates > subkingdom Parazoa > phylum Porifera > [adjective] > relating to a sponge > of parts of sponge > of unspecified sponge spicule > pointed at both ends

oxeate1887

1887 Encycl. Brit. XXII. 416/2 The spicular rays often become cylindrical; usually pointed (oxeate) at the ends, they are also frequently rounded off (strongylate).

1943 Amer. Midland Naturalist 29 749 Fossil oxeate spicules are generally placed on the order Monactinellida, but continuance of that procedure can only lead to confusion and misconceptions.

This entry has been updated (OED Third Edition, March 2005; most recently modified version published online March 2022).

单词	oxea
释义	oxean. Brit. /ˈɒksɪə/, U.S. /ˈɑksiə/ Inflections: Plural unchanged. Origin: A borrowing from Greek. Etymon: Greek ὀξέα. Etymology: < ancient Greek ὀξέα (Ionic (Attic ὀξεῖα ); also as a variant reading in Hippocrates), feminine (agreeing with ῥάβδος rhabdus n.) corresponding to ὀξύς sharp (see oxy- comb. form¹). Zoology. In sponges: a needle-shaped spicule which is pointed at both ends. ΘΚΠ the world > animals > invertebrates > subkingdom Parazoa > phylum Porifera > [noun] > member of > parts of > sponge spicule > pointed at both ends oxea1886 rhabd1890 1886 R. von Lendenfeld in Proc. Zool. Soc. 585 Family Homorhaphidae Ridley and Dendy. Megasclera oxea or strongyla; no differentiated microsclera except toxia. 1887 Encycl. Brit. XXII. 416/1 By far the commonest form is the oxea, a needle-shaped form pointed at both ends and produced by growth from a centre at the same rate in opposite directions along the same axis. 1924 Proc. Royal Soc. B. 97 244 The main skeleton is radially arranged and the megascleres consist of triænes of various kinds—the most characteristic being large dichotriænes—and large oxea. 1968 P. Brien in M. Florkin & B. T. Scheer Chem. Zool. II. i. i. 13 They are straight or arcuate oxea, strongyles, tylotes, amphistrongyles, smooth or spiny. 1996 Proc. National Acad. Sci. U.S.A. 93 6241/2 Criteria used in sponge specimen identification included..the size and shape of siliceous spicules, which included both oxea and style types. Derivatives ˈoxeate adj. having the form of an oxea. ΘΚΠ the world > animals > invertebrates > subkingdom Parazoa > phylum Porifera > [adjective] > relating to a sponge > of parts of sponge > of unspecified sponge spicule > pointed at both ends oxeate1887 1887 Encycl. Brit. XXII. 416/2 The spicular rays often become cylindrical; usually pointed (oxeate) at the ends, they are also frequently rounded off (strongylate). 1943 Amer. Midland Naturalist 29 749 Fossil oxeate spicules are generally placed on the order Monactinellida, but continuance of that procedure can only lead to confusion and misconceptions. This entry has been updated (OED Third Edition, March 2005; most recently modified version published online March 2022). < n.1886
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