rostro-comb. form

Stress is usually determined by a subsequent element and vowels may be reduced accordingly.

Origin: Formed within English, by compounding. Etymons: rostrum n., -o- connective.

Etymology: < rostrum n. + -o- connective. Compare scientific Latin rostro- (in e.g. rostro-crassa (1796 as a specific name in zoology)). Compare rostrato- comb. form.Found in a small number of formations in zoology and embryology, exemplified below.

Zoology and Embryology. Forming adjectives with the sense ‘relating to or involving a rostrum or snout, or (more generally) the anterior end of an organism or structure’, and corresponding adverbs.

† rostro-antennary adj. Obsolete rare

ΚΠ

1888 Huxley & Martin's Elem. Biol. 225 A rostro-antennary branch; arising from the main trunk at the base of eye-stalk, and distributed to the antennule and rostrum.

rostro-branchial adj.

Brit.

/ˌrɒstrə(ʊ)ˈbraŋkɪəl/

U.S.

/ˌrɔstroʊˈbræŋkiəl/

/ˌrɑstroʊˈbræŋkiəl/

rare

ΚΠ

1884 Amer. Naturalist 18 550 Dr. T. Gill..asks for further information respecting the Saccopharyngidae.., with the branchio-anal portion much longer than the rostro-branchial.

1913 E. Lea Muraenoid Larvae in J. Murray & J. Hjort Rep. Sci. Results Michael Sars N. Atlantic Deep Sea Exped. 1910 (1933) i. 36/2 The larva has the following dimensions:..Rostrobranchial distance 7.0 [mm].

rostrolateral adj.

Brit.

/ˌrɒstrə(ʊ)ˈlat(ə)rəl/

/ˌrɒstrə(ʊ)ˈlat(ə)rl̩/

U.S.

/ˌrɔstroʊˈlædərəl/

/ˌrɑstroʊˈlædərəl/

/ˌrɔstroʊˈlætrəl/

/ˌrɑstroʊˈlætrəl/

ΚΠ

1853 C. Darwin Let. 17 July (1989) V. 146 This valve is the rostro-lateral compartment of Sc. rutilum.

1937 Philos. Trans. (Royal Soc.) B. 227 183 The rostro-lateral coelomic walls extend medially as a thin single-layered band over the ectoderm.

2005 Jrnl. Vertebr. Paleontol. 25 807/2 Prominent boss on dorsal surface of rostrolateral process of parietal.

rostro-caudal adj.

Brit.

/ˌrɒstrə(ʊ)ˈkɔːdl/

U.S.

/ˌrɔstroʊˈkɔd(ə)l/

/ˌrɔstroʊˈkɑd(ə)l/

/ˌrɑstroʊˈkɔd(ə)l/

/ˌrɑstroʊˈkɑd(ə)l/

designating the axis running from the head to the tail of an organism, esp. an embryo.

ΚΠ

1834 Rep. Brit. Assoc. Advancem. Sci. 1833 439 Symphysis pubis, its rostro-caudal extent.

1929 Philos. Trans. (Royal Soc.) B. 217 162 In the middle part of the rostro-caudal extent of the nucleus, at its middle ventral border, is a group of five or six smallish cells.

1998 Proc. National Acad. Sci. U.S.A. 95 4407 The expression of RDH4 in the floor plate appeared discontinuous along the rostro-caudal axis of the neural tube.

rostrocaudally adv.

Brit.

/ˌrɒstrə(ʊ)ˈkɔːdl̩i/

U.S.

/ˌrɔstroʊˈkɔdəli/

/ˌrɔstroʊˈkɑdəli/

/ˌrɑstroʊˈkɔdəli/

/ˌrɑstroʊˈkɑdəli/

in a rostrocaudal direction.

ΚΠ

1918 Bull. Amer. Mus. Nat. Hist. 38 370 The remainder of the surface on the right side is broad, smooth, and concave rostrocaudally.

1997 Proc. National Acad. Sci. U.S.A. 94 10423/1 This frequency representation consisted of isofrequency regions that extended mediolaterally and rostrocaudally.

This entry has been updated (OED Third Edition, November 2010; most recently modified version published online March 2022).

单词	rostro-
释义	rostro-comb. form Stress is usually determined by a subsequent element and vowels may be reduced accordingly. Origin: Formed within English, by compounding. Etymons: rostrum n., -o- connective. Etymology: < rostrum n. + -o- connective. Compare scientific Latin rostro- (in e.g. rostro-crassa (1796 as a specific name in zoology)). Compare rostrato- comb. form.Found in a small number of formations in zoology and embryology, exemplified below. Zoology and Embryology. Forming adjectives with the sense ‘relating to or involving a rostrum or snout, or (more generally) the anterior end of an organism or structure’, and corresponding adverbs. a. † rostro-antennary adj. Obsolete rare ΚΠ 1888 Huxley & Martin's Elem. Biol. 225 A rostro-antennary branch; arising from the main trunk at the base of eye-stalk, and distributed to the antennule and rostrum. rostro-branchial adj. Brit. /ˌrɒstrə(ʊ)ˈbraŋkɪəl/ , U.S. /ˌrɔstroʊˈbræŋkiəl/ , /ˌrɑstroʊˈbræŋkiəl/ rare ΚΠ 1884 Amer. Naturalist 18 550 Dr. T. Gill..asks for further information respecting the Saccopharyngidae.., with the branchio-anal portion much longer than the rostro-branchial. 1913 E. Lea Muraenoid Larvae in J. Murray & J. Hjort Rep. Sci. Results Michael Sars N. Atlantic Deep Sea Exped. 1910 (1933) i. 36/2 The larva has the following dimensions:..Rostrobranchial distance 7.0 [mm]. rostrolateral adj. Brit. /ˌrɒstrə(ʊ)ˈlat(ə)rəl/ , /ˌrɒstrə(ʊ)ˈlat(ə)rl̩/ , U.S. /ˌrɔstroʊˈlædərəl/ , /ˌrɑstroʊˈlædərəl/ , /ˌrɔstroʊˈlætrəl/ , /ˌrɑstroʊˈlætrəl/ ΚΠ 1853 C. Darwin Let. 17 July (1989) V. 146 This valve is the rostro-lateral compartment of Sc. rutilum. 1937 Philos. Trans. (Royal Soc.) B. 227 183 The rostro-lateral coelomic walls extend medially as a thin single-layered band over the ectoderm. 2005 Jrnl. Vertebr. Paleontol. 25 807/2 Prominent boss on dorsal surface of rostrolateral process of parietal. b. rostro-caudal adj. Brit. /ˌrɒstrə(ʊ)ˈkɔːdl/ , U.S. /ˌrɔstroʊˈkɔd(ə)l/ , /ˌrɔstroʊˈkɑd(ə)l/ , /ˌrɑstroʊˈkɔd(ə)l/ , /ˌrɑstroʊˈkɑd(ə)l/ designating the axis running from the head to the tail of an organism, esp. an embryo. ΚΠ 1834 Rep. Brit. Assoc. Advancem. Sci. 1833 439 Symphysis pubis, its rostro-caudal extent. 1929 Philos. Trans. (Royal Soc.) B. 217 162 In the middle part of the rostro-caudal extent of the nucleus, at its middle ventral border, is a group of five or six smallish cells. 1998 Proc. National Acad. Sci. U.S.A. 95 4407 The expression of RDH4 in the floor plate appeared discontinuous along the rostro-caudal axis of the neural tube. rostrocaudally adv. Brit. /ˌrɒstrə(ʊ)ˈkɔːdl̩i/ , U.S. /ˌrɔstroʊˈkɔdəli/ , /ˌrɔstroʊˈkɑdəli/ , /ˌrɑstroʊˈkɔdəli/ , /ˌrɑstroʊˈkɑdəli/ in a rostrocaudal direction. ΚΠ 1918 Bull. Amer. Mus. Nat. Hist. 38 370 The remainder of the surface on the right side is broad, smooth, and concave rostrocaudally. 1997 Proc. National Acad. Sci. U.S.A. 94 10423/1 This frequency representation consisted of isofrequency regions that extended mediolaterally and rostrocaudally. This entry has been updated (OED Third Edition, November 2010; most recently modified version published online March 2022). < comb. form1834
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