rostrum


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rostrum

1. a platform or dais in front of an orchestra on which the conductor stands
2. another word for ram (sense 4)
3. the prow or beak of an ancient Roman ship
4. Biology Zoology a beak or beaklike part

Rostrum

 

(1) In fish, the anterior part of the neurocranium, located in front of the olfactory capsules. The rostrum is especially prominent as an integral cartilaginous process in Acipen-seridae, for example, in the stellate sturgeon (Acipenser stellatus) and Scaphirhyncus, and in chondrichthians, for example, in the sawfish and saw shark. In the smooth hound and other fish the rostrum is represented by three separate outgrowths. In the sawfish and saw shark large cutaneous teeth (placoid scales) are located along the sides of the rostrum; in these animals, the rostrum resembles a saw and serves as a weapon of defense and attack. In the majority of Batoidei the anterior edges of the pectoral fins are attached to the rostrum. The rostrum is reduced in many contemporary bony fishes and in terrestrial vertebrates.

(2) In reptiles and birds, the anterior process of the basisphe-noid bone. The rostrum is formed by the concrescence of the integumentary sphenoid bone to the basisphenoid bone.

rostrum

[′rä·strəm]
(biology)
A beak or beaklike process.

rostrum

A platform, elevated area, pulpit, or the like for addressing an audience.
References in periodicals archive ?
Tender notice number : TENDER FOR PROCUREMENT OF SMART ROSTRUM
I've had some good meetings in the ELRC - I've got on the rostrum a number of times but still not managed to win it.
Integument reddish black, slightly paler at the apex of the rostrum and tibiae, and much paler in the antennae; and set with truncate, whitish, brown and dark brown recumbent scales, with the scales sparse, separate and not covering the entire surface (Figs.
rostrum does not appear to be negatively correlated to the number of seeds matured.
The annual Rostrum promotes contemporary music creation through broadcasting by fostering the exchange of performances between broadcasting organizations.
Candles, one for each person killed, are placed in front of the rostrum as US President Barack Obama speaks at a vigil held at Newtown High School for families of victims of the Sandy Hook Elementary School shooting in Newtown, Connecticut.
The starter's rostrum has been moved to a position between the starting tape and the 'no-go' zone to reduce the potential for horses to go through the starting tape prematurely.
The Aussie has fond memories of this event - he won it in 2010 and made the rostrum last year.
After claiming the women's U57kg title at ExCeL, the top seed and 2011 world silver medalist paid tribute to fancied fighters Tomoko Fukumi and world champion Misato Nakamura who failed to make it to the rostrum.
He said: "From this rostrum, we call for the elimination of Sudan's debt in accordance with the same standards applied to less developed countries.
It's June, 1955, and these well-dressed pedestrians in Church Street, Liverpool, benefit from the new elevated rostrum for policewomen on point-duty, here directing two Corpy buses and a Standard 10.
Jonathan Small, principal oboe of the Royal Liverpool Philharmonic, takes to the rostrum for the first time tomorrow, to conduct a programme of music by Wagner, VaughanWilliams and Sibelius (Symphony No 2).