What's the difference between ululate and undulate?

Ululate


Definition:

  • (v. i.) To howl, as a dog or a wolf; to wail; as, ululating jackals.

Example Sentences:

  • (1) ululates one of the series' many perturbed adolescent hunks.
  • (2) There was a festive atmosphere at polling stations on Monday, with some voters dancing to pro-military songs and ululating after casting their ballot.
  • (3) Zuma cast his vote in Nkandla, KwaZulu-Natal province, where a scandal over the spending of taxpayer millions on security upgrades at his homestead did not prevent crowds greeting him enthusiastically and ululating.
  • (4) Whether aged 14 or 40, a particular dashboard speed can never be reached without an instinctive ululation, "88 miiiles per houuuur"… When Secret Cinema , an organisation that arranges ambitious, mixed-media screenings of films, announced it was to show Back to the Future over 30 nights this summer, it sold more than 65,000 tickets.
  • (5) When Riek Machar, the former rebel leader and vice-president of South Sudan, arrived at Juba airport late last month he was greeted by ululations and the release of white doves, the symbol of peace.
  • (6) They chant, sing and ululate their praise – usually segregated from male supporters.
  • (7) Now 77, she was feted at the film premiere, having pride of place beside Elba before taking the stage to applause and ululations.
  • (8) By then, white protesters had left, leaving only hundreds of black people who screamed, cat-called and ululated in support.
  • (9) Standing through the sunroof of a car, Besigye and his wife, Winnie, waved to several thousand cheering and ululating supporters amid a heavy security presence along the road from Entebbe airport to Kampala.
  • (10) Between bursts, I could hear the women ululating from the gravesite, greeting the corpse, shouting again that God is great.
  • (11) Francis, who moves on to Uganda on Friday, began his first full day in the Kenyan capital by meeting Muslim and other religious leaders before saying an open-air Mass for tens of thousands of rain-drenched people who sang, danced and ululated as he arrived in an open popemobile.
  • (12) Groups of women dropped to the ground ululating and sobbing.
  • (13) In the huge crowd, where boys held up paper flags and women ululated, emotions were barely contained.
  • (14) Africans will ululate, say their brother has come and celebrate him as an icon and hero, but the package he should provide will not come easily in the economic crisis.
  • (15) Against a backdrop of the shattered facade and draped in a flowing headscarf of green and gold, Aisha pumped her fists at the crowd as they roared and ululated their approval.
  • (16) Before I inflict my various observations and prejudices on you this evening (yes, we will be Team Conchita all the way, I’m terribly sorry, in this time-delayed global celebration of ululation, impartiality really is for wimps) I thought I’d come to terms with why I’m a Eurovision tragic.
  • (17) Greeted by ululations, she told the hundreds of guests: "I'm just as excited as all of you are.

Undulate


Definition:

  • (a.) Same as Undulated.
  • (v. t.) To cause to move backward and forward, or up and down, in undulations or waves; to cause to vibrate.
  • (v. i.) To move in, or have, undulations or waves; to vibrate; to wave; as, undulating air.

Example Sentences:

  • (1) Three mechanisms play an important role: true elongation of the length of the nerve in the relaxed state against elastic forces; movement of the nerve trunk in the longitudinal direction; and increase and decrease of the tissue relaxation at the level of the nerve trunk (relaxed course) and the nerve fibers (change in the undulated course).
  • (2) In irregular undulation 89.1% of the time corresponded to Stage 2.
  • (3) These two forms could easily be differentiated by examination of the undulating membrane and kinetoplast.
  • (4) The findings were confirmed by a histopathological analysis showing the development of coagulative necrosis and myocytolysis as well as undulations of heart muscle cells as a sign of cardiogenic shock.
  • (5) Paroxysmal headache of the migraine type as well as permanent undulating headache (which we call cephalea) can lead to chronification, both often mixes within the chronification.
  • (6) After treatment with the contraction medium of Hoffmann-Berling, the filaments appear to be undulated.
  • (7) An undulating lightweight roof is supported by 211 narrow steel columns, sheltering a glass box holding the cafe and shop, and a chestnut timber-covered box holding the displays.
  • (8) The original concept of the blood pump is represented by an asymmetrical type of pump with an asymmetrical diaphragm and undulating motion of the diaphragm allowing optimal washing of the blood chamber.
  • (9) When blastomers cease cleaving, their surfaces undulate and form blebs.
  • (10) Foremost among these is a modification of the cell wall from an undulating structure to one which is smooth and has become enlarged.
  • (11) The distal fibular physis also begins as a transverse structure that becomes undulated and has extensive peripheral lappet formation.
  • (12) Undulations in the levels of all responses were noted; the "weaker" the antigen the larger the undulations.
  • (13) Tendon fibers lose their typical undulating appearance and become quite straight.
  • (14) On the rehabilitation ward of a tertiary care hospital, the patient developed undulating fever to 39.6C, rapidly worsening peripheral vascular disease, and pulmonary emboli.
  • (15) All human sera, from patients with tuberculosis as well as from control subjects, gave almost identical undulating patterns of reactivity with the decapeptides.
  • (16) For instance, platelets probably contract, possess a microfilament network, and behave like undulating membrane organelles.
  • (17) The incidence of the 60-69 year old males dropped in a range of 10%; that of the females with the same age had an undulating course with rising trend.
  • (18) The characteristic features of laparoscopic appearance--gentle undulation--were observed in 11 out of 13 (85%) patients with PBC.
  • (19) Tortuous undulating agranular endoplasmic reticulum (ER) was usually closely associated with microperoxisomes.
  • (20) Conversely, nerve shortening enhanced the undulation.